Realm · 878–959
Kingdom of Seisyllwg
Kingdom of Seisyllwg appears on the map from 878 to 959. At its greatest recorded extent, in 947, it covered about 18,353 km².
See Kingdom of Seisyllwg on the map in 947
- On the map
- 878–959
- Greatest extent
- 947, about 18,353 km²
- Part of
- Brythonic Kingdoms
- Read more
- Wikipedia: Seisyllwg · Wikidata Q2456191
Territory through time
| Years | Area drawn |
|---|---|
| 878–899 | 4,512 km² |
| 900–910 | 8,914 km² |
| 911–921 | 7,871 km² |
| 922–946 | 14,214 km² |
| 947–959 | 18,353 km² |