| Name | Mstislav |
| Province ID | 4246 |
| Continent | Europe |
| Super region | Eastern Europe |
| Region | Ruthenia |
| Area | White Ruthenia |
| Development | 3 |
| Base Tax | 1 |
| Base Production | 1 |
| Base Manpower | 1 |
| Trade node | California |
| Owner | Lithuania |
| Culture | Byelorussian |
| Culture Group | East Slavic |
Here are the IDs of provinces that in on the same region as Mstislav:
| Province | Province ID |
|---|---|
| Bobrujsk | 4544 |
| Bratslav | 1943 |
| Brest | 277 |
| Bryansk | 297 |
| Chelm | 4538 |
| Cherkasy | 1944 |
| Chernigov | 289 |
| Grodno | 1937 |
| Kharkov | 291 |
| Kiev | 280 |
| Kremenets | 4539 |
| Kursk | 298 |
| Lubnie | 4542 |
| Mazyr | 4115 |
| Minsk | 276 |
| Mogilev | 292 |
| Mstislav | 4246 |
| Nowogrodek | 4537 |
| Owrucz | 4247 |
| Pereyaslav | 2407 |
| Pinsk | 278 |
| Podlasie | 269 |
| Podolia | 281 |
| Poltava | 290 |
| Rowne | 2962 |
| Rylsk | 4543 |
| Severia | 1945 |
| Sluck | 4545 |
| Smolensk | 293 |
| Trubchevsk | 4244 |
| Turov | 1941 |
| Ula | 4242 |
| Vitebsk | 771 |
| Volhynia | 279 |
| Voronezh | 299 |
| Vyazma | 4245 |
| Winnica | 4540 |
| Yelets | 2408 |
| Zhytomyr | 1942 |