Realm · 1139–1351
Duchy of Masovia
Duchy of Masovia appears on the map from 1139 to 1351. At its greatest recorded extent, in 1147, it covered about 166,473 km².
See Duchy of Masovia on the map in 1147

- On the map
- 1139–1351
- Greatest extent
- 1147, about 166,473 km²
- Part of
- Duchies of Poland
- Read more
- Wikipedia: Duchy of Masovia · Wikidata Q2361927
Territory through time
| Years | Area drawn |
|---|---|
| 1139–1146 | 35,877 km² |
| 1147–1168 | 166,473 km² |
| 1169–1176 | 156,017 km² |
| 1177–1187 | 35,725 km² |
| 1202–1205 | 35,572 km² |
| 1206–1209 | 35,708 km² |
| 1210–1215 | 35,725 km² |
| 1216–1226 | 35,708 km² |
| 1227–1235 | 35,725 km² |
| 1236–1240 | 31,786 km² |
| 1241–1249 | 29,260 km² |
| 1250–1259 | 31,427 km² |
| 1260–1278 | 31,448 km² |
| 1279–1304 | 31,334 km² |
| 1305–1325 | 31,448 km² |
| 1326–1332 | 30,989 km² |
| 1333–1343 | 25,854 km² |
| 1344–1351 | 30,989 km² |