Principality of Halych

State · 1147–1201 CE · at its largest around 1147 CE

Rus' principality in present-day western Ukraine centred on Halych, which grew strong under Yaroslav Osmomysl and was united with Volhynia in 1199.

On its lands while it lasted

Halych (c. 1147 CE): Capital of Principality of Halych (1147–1199), Halych-Volhynia occupation (1199–1240), Principality of Galicia-Volhynia (1202–1240), and 1 more.
Lviv (c. 1199 CE): Capital of Halych-Volhynia occupation (1199–1240), Principality of Galicia-Volhynia (1202–1240), Galicia-Volhynia (1294–1349).