Question: When did Yaroslavna Of Halych's father die?
Sentence (from "Yaroslav Osmomysl"): Yaroslav Osmomysl ("Osmomyslŭ Jaroslavŭ") (ca. 1135 – 1 October 1187) was the most famous Prince of Halych (now in Western Ukraine) from the first dynasty of its rulers, which descended from Yaroslav
Relevant evidence: Yes