We have talked about the various Iasions throughout Polish history and their connections to antiquity. But what about geography? As mentioned there may be an occasional Piorunowo, Strzybogi or even Swarozyn. Are these town names former worship places? Maybe or maybe not. But what about Jasion? A quick search of the map reveals a huge number of Jasion and related names that dwarfs any of the above. Are these all places owned by a “Jan” or places where the ash tree (jesion) grew aplenty? Or is there a more mystical reason for this topography?

These names along with few (I did not do a review outside of Poland) from Ukraine and Germany are on the map below (in red). The mountain peaks are also listed (in green)

There are also rivers and lakes (in blue) though I only included a few of those items in the list below.

All of this is far from complete and there are many more similar names if you are willing to spend time pouring over the map. 

Towns

• Jasiel – near Slovakian border

• Jasienica – (German Jasenitz, then Jasienice) part of Police, a town in Pomerania
  • site of the Jasenitz abbey
  • first mentioned: 1260 but village likely founded much earlier
  • Nowa Jasienica – a village next to Jasienica (Police)
• Jasienica – a village in the administrative district of gmina Ziebice, within Zabkowice Slaskie County, Lower Silesian Voivodeship (south-west) (German Heinzendorf since?)
• Jasienica – a village in the administrative district of gmina Dubienka, within Chelm County, Lublin Voivodeship (east)Jasienica – a village and seat of gmina Jasienica, Bielsko County, Silesian Voivodelship (south)
  • first mentioned circa 1305 in Liber foundations episcopates Vratislaviensis as “item in Gessenita decent ease XI) mansi solubiles” (German Heinzendorf, Czech Jasenice)
• Jasienica – a village in the administrative district of gmina Myslenice, within Myslenice County, Lesser Poland Voivodeship (south)
  • after 1335, probably named after the river Jasieniczanka that flows through the village
• Jasienica – a village in the administrative district of gmina Łoniów, within Sandomierz County, Swietokrzyskie Voivodeship, (south-central)
• Jasienica – a village in the administrative district of gmina Ostrow Mazowiecka, within Ostrow Mazowiecka County, Masovian Woivodeship (east-central)
  • also nearby Jasienica-Parcele
• Jasienica – a village in the administrative district of gmina Tłuszcz, within Wolomin County, Masovian Voivodeship (east-central)
  • first mentioned: in 1414
  • names used: Jassenicza, Jassyenyecz, Jassyenicza, Jaszenicza, Jaszenecz, Jasiennica, Jasszenicza, Jassyeniecz, Jaschenyecz, Jasyenyecz, Jassenycza, Jaschyenycze, Jasyenycza, Yassyennycza (Slownik historyczno-geograficzny ziem polskich w sredniowieczu)
• Jasienica (German Jessnitz) – a village in the administrative district of gmina Brody, within Żary County, Lubusz Voivodeship (western)
  • first mentioned: in 1452 as Jessenitz
• Jasienica Rosielna – a village in Brzozow County, Subcarpathian Voivodeship (south-east)
  • was called just Jasienica and was a town as early as 1727
• Jasienica Dolna – a village near near Nysa
• Jasienica Gorna – a village near near Nysa on the Czech border
• Jasienica Sufczynska – a village near near Przemysl

• Jasienie (Geman Jaschine but the obvious Suavic name made the Nazis change it to Eschenwalde – which just means ash forest)
  • first mentioned: in the Liber foundations episcopates Vratislaviensis as “Cossine solvitur decima more polonico”  “combined with “Lippe Cossine”

• Jasienna – village in the administrative district of gmina Korzenna within Nowy Sacz County, Lesser Poland Voivodeship (south)
  • first mentioned: in 1372

• Jasiennik Stary – southwest of Biłgoraj

• Jasień (Cashubian Nënczi or Nënkòwë, German Nenkau) – an administrative part of Gdańsk; previously a separate village;
  • previously Nenkowe village which, however, was then acquired by a certain Jasiński a judge who bought the village in 1704

• Jasień (German: Lichtenbach) – a village in the administrative district of gmina Tłuchowo, within Lipno County, Kuyavian-Pomeranian Voivodeship (north-central)
• Jasień (German: Gassen) – a town in Poland, within Żary County, Lubusz Voivodeship (west)
  • gmina seat
• Jasień (German: Jassen; Kashubian Jaséń) – a village in the administrative district of gmina Czarna Dąbrówka, within Bytów County, Pomeranian Voivodeship (northern)
  • lies on Lake Jasień
• Jasień – a village in the administrative district of gmina Rogów, within Brzeziny County, Łódź Voivodeship (central)
• Jasień – a village in the administrative district of gmina Kobiele Wielkie, within Radomsko County, Łódź Voivodeship (central)
  • next to Jasień state park
• Jasień – a village in the administrative district of gmina Głuchów, within Skierniewice County, Łódź Voivodeship (central)
  • near Rawa Mazowiecka
• Jasień – is a village in the administrative district of gmina Lubochnia, within Tomaszów Mazowiecki County, Łódź Voivodeship (central)
  • nearby also Nowy Jasień
• Jasień – a village in the administrative district of gmina Osjaków, within Wieluń County, Łódź Voivodeship (central)
• Jasień – a village in the administrative district of gmina Brzesko, within Brzesko County, Lesser Poland Voivodeship (southern)
• Jasień – a village in the administrative district of gmina Chmielnik, within Kielce County, Świętokrzyskie Voivodeship (south-central)
• Jasień – a village in the administrative district of gmina Łopuszno, within Kielce County, Świętokrzyskie Voivodeship (south-central)
• Jasień – is a village in the administrative district of gmina Staszów, within Staszów County, Świętokrzyskie Voivodeship (south-central)
• Jasień – a village in the administrative district of gmina Repki, within Sokołów County, Masovian Voivodeship (east-central)
• Jasień (German: Jasin) – a village in the administrative district of gmina Czempiń, within Kościan County, Greater Poland Voivodeship (west-central)
• Jasień – a hamlet part of the village Czarna Sędziszowska in the administrative district of gmina Sędziszów Małopolski, within Ropczyce-Sędziszów County, Subcarpathian Voivodeship (south-eastern)
  • also nearby Mały Jasień
• Jasień – a part of the town Ustrzyki Dolne

• Jasieniec – a town and a gmina seat near Grojec
• Jasieniec Iłżecki Górny – between Ostrowiec and Radom
  • Jasieniec Iłżecki Dolny
  • Nowy Jasieniec Iłżecki
  • Jasieniec Nowy
  • Gajówka Jasieniec
  • Jasieniec-Maziarze
• Jasieniec Solecki – a village near near Zwoleń
  • Jasieniec Kolonia

• Jasion – a village in the administrative district of gmina Żarnów, within Opoczno County, Łódź Voivodeship (central)

• Jasionka – a village in the administrative district of gmina Trzebownisko, within Rzeszów County, Subcarpathian Voivodeship (southeast)
• Jasionka – a part of the village Krzywa in the administrative district of gmina Sękowa, within Gorlice County, Lesser Poland Voivodeship (south)
• Jasionka – a village in the administrative district of gmina Zgierz, within Zgierz County, Łódź Voivodeship (central)
  • first mentioned: 1396
• Jasionka – a village in the administrative district of gmina Parczew, within Parczew County, Lublin Voivodeship (eastern)
  • first mentioned: 19th century
• Jasionka – a village in the administrative district of gmina Zbuczyn, within Siedlce County, Masovian Voivodeship (east central)
• Jasionka (German: Jassonke and Neu Jassonke) – settlement in the administrative district of gmina Kołczygłowy, within Bytów County, Pomeranian Voivodeship (north)
  • first mentioned: at least 1749
  • nearby also Nowa Jasionka
• Jasionka (Ukrainian: Ясінка, Yasinka) – a village in the administrative district of gmina Dukla, within Krosno County, Subcarpathian Voivodeship (southeast)
  • first mentioned: 14th century
  • other: through the village runs the river Jasionka a tributary of Jasiołka.
• Jasionka – a part of the village Skórka in the administrative district of gmina Parzęczew, within Zgierz County, Łódź Voivodeship (central)
• Jasionka – a part of the village Blizne in the administrative district of gmina Jasienica Rosielna, within Brzozów County, Subcarpathian Voivodeship (southeast)
• Jasionka – a part of the village Krzątka in the administrative district of gmina Majdan Królewski, Kolbuszowa County, Subcarpathian Voivodeship (southeast)
• Jasionka –  a part of the village Krzewata in the administrative district of gmina Olszówka, Koło County, Greater Poland Voivodeship (west-central)

• Jasionna – a village in the administrative district of gmina Piątek, within Łęczyca County, Łódź Voivodeship (central)
• Jasionna – a village in the administrative district of gmina Błaszki, within Sieradz County, Łódź Voivodeship (central)
• Jasionna – a village in the administrative district of gmina Bolimów, within Skierniewice County, Łódź Voivodeship (central)
• Jasionna – a village in the administrative district of gmina Głowno, within Zgierz County, Łódź Voivodeship (central)
• Jasionna – a village in the administrative district of gmina Jędrzejów, within Jędrzejów County, Świętokrzyskie Voivodeship (south-central)
• Jasionna – a village in the administrative district of gmina Białobrzegi, within Białobrzegi County, Masovian Voivodeship (east-central)
• Jasionna – a village in the administrative district of gmina Wronki, within Szamotuły County, Greater Poland Voivodeship (west-central)
• Jasionna (German: Jessen) – a village in the administrative district of gmina Jasień, within Żary County, Lubusz Voivodeship (western)

• Jasionno – a village near near Elblag

• Jasionowo – a village in the administrative district of gmina Lipsk, within Augustów County, Podlaskie Voivodeship (north-eastern)
• Jasionowo – a village in the administrative district of gmina Rutka-Tartak, within Suwałki County, Podlaskie Voivodeship (north-eastern)
• Jasionowo – a village in the administrative district of gmina Szypliszki, within Suwałki County, Podlaskie Voivodeship (north-eastern)
• Jasionowo – a village in the administrative district of gmina Sztabin, within Suwałki County, Podlaskie Voivodeship (north-eastern)
• Jasionowo Dębowskie – a village in the administrative district of gmina Sztabin, within Suwałki County, Podlaskie Voivodeship (north-eastern)

• Jasionów – (Ukrainian: Ясенів, Yaseniv) – a village in the administrative district of gmina Haczów, within Brzozów County, Subcarpathian Voivodeship (south-eastern)
• Jasionów (German: Jeßmenau) – a village in the administrative district of gmina Trzebiel, within Żary County, Lubusz Voivodeship (western)
• Jasionów – a part of the village Huta Poręby in the administrative district of gmina Nozdrzec, within Brzozów County, Subcarpathian Voivodeship (southeast)
• Jasionów – a hamlet of the village Olszówka in the administrative district of gmina Mszana Dolna, within Limanowa County, Lesser Poland Voivodeship (south)

• Jasło – (German: Jassel) – a county seat in the Subcarpathian Voivodeship (southeast)

• Jastew – a village in the administrative district of gmina Dębno, within Brzesko County, Lesser Poland Voivodeship (southern)

• Jaświły – a village in Mońki County, Podlaskie Voivodeship (north-east)
  • it is the seat of the gmina Jaświły

• Jesienicha – a settlement in the administrative district of gmina Czarna Białostocka, within Białystok County, Podlaskie Voivodeship (north-eastern)

• Jesiona – a village  in the administrative district of gmina Kolsko, within Nowa Sól County, Lubusz Voivodeship (western

• Jesionka – a part of the village Jesiona in the administrative district of gmina Kolsko, within Nowa Sól County, Lubusz Voivodeship (western)
• Jesionka – a part of the village Szczecin in the administrative district of gmina Dmosin, within Brzezin County, Łódź Voivodeship (central)
• Jesionka – a colony in the administrative district of gmina Ciechocin, within Golub-Dobrzyń County, Kuyavian-Pomeranian Voivodeship (north-central)
• Jesionka – a hamlet part of the village Nowa Wieś Szlachecka in the administrative district of gmina Czernichów within Kraków County, Lesser Poland Voivodeship (south)
• Jesionka – a village in the administrative district of gmina Szczawin Kościelny, within Gostynin County, Masovian Voivodeship (east-central)
• Jesionka – a village in the administrative district of gmina Baboszewo, within Płońsk County, Masovian Voivodeship (east-central)
• Jesionka – a village in the administrative district of gmina Wiskitki, within Żyrardów County, Masovian Voivodeship (east-central)
• Jesionka – a village in the administrative district of gmina Czosnów, within Nowy Dwór Mazowiecki County, Masovian Voivodeship (east-central)
• Jesionka –  a village in the administrative district of gmina Sompolno, within Konin County, Greater Poland Voivodeship (west-central)
• Jesionka –  a part of the village Sołtysy in the administrative district of gmina Praszka, within Olesno County, Opole Voivodeship (south-western)
• Jesionka – a settlement in the administrative district of gmina Czerwionka-Leszczyny, within Rybnik County, Silesian Voivodeship (south)

• Jesionna – a village in the administrative district of gmina Wodzierady, within Łask County, Łódź Voivodeship (central)

Mountain Peaks

(not shown on map)

• Jasiennik – peak near Lubomierz in Beskid Sadecki
• Jasiennik – peak at Przysietnica in Beskid Sadecki

Rivers/Streams/Lakes

(not shown on map except Lake Jasień)

• Jasienica – a tributary of Ilownica
• Jasienica – a tributary of Klodnica
• Jasienica – a tributary of Wirowa
• Jasienica – a tributary of Gunica
• Jasienica – a tributary of Rega
• Jasienica – a tributary of Grabowa
• Jasienica – a tributary of Wieprza

• Jasieniczanka – a small river flowing through Jasienica, a village in the administrative district of gmina Myslenice

• Jasień – a river in the Polish city Łódź; a tributary of Ner 

• Jasień  (Cashubian Jezero Jaséńsczé, German Jassener See) – a lake in the Bytów Lake District (Pojezierze Bytowskie, Cashubian, Bëtowsczé Pòjezerzé)
  • Bytów is the bigger town there (Cashubian, Bëtowò, German Bütow); its name may come (or vice versa) from the river Bytowa (Bytówka, Cashubian Bëtowa) 
  • a part of the Słupia Valley Landscape Park

• Jasiołka – a river in SE Poland; a tributary of Wisłoka

• Jasionka – a tributary of Jasiołka

Outside Poland

(these are just some examples – for a great list of all of these see the Allgemeines geographisch-statistisches Lexikon aller Laender, volume 3 pages 469-478, 486-487 (Ja-) and pages 506-514 (Je-))

Towns/Geographic Features

• Jasionów – a village in the Brod region near Lviv, Ukraine
• Jasienica Zamkowa – near Lviv, Ukraine
• Jasenegg – a village in Austria
• Jessen – a town in East Germany
• Jasnitz – a town East Germany
• Jassmund – Rugia, Germany
• Jestetten – a town in Germany
• Jesenwang – a village in Germany
• Jesen – a village in Slovenia
• Jesenice – a village in Slovenia
• Jesenice – a village in the Czech Republic
• Jesenik – a village in the Czech Republic
• Jesenec – a village in the Czech Republic
• Jesenské – a village in Slovakia
• Jasenica – a village in Slovakia
• Jasenie – a village in Slovakia
• Jasenov – a village in Slovakia
• Jasenovo – a village in Serbia
• Jasenice – a village in Croatia
• Jasenovac – a village in Croatia
• Jasenovac – a village in Bosnia Herzegovina
• Iesi – a town in Italy (hence the Codex Aesinas)
• Jesolo – a part of Venice

Mountain Peaks