Question: What is the date of death of Fjodor Koltšin's father?
Sentence (from "Pavel Kolchin"): Pavel Konstantinovich Kolchin (sometimes spelled Pavel Koltsjin; ; 9 January 1930 – 29 December 2010) was a Soviet cross-country skier who competed during the 1950s and 1960s, training at Dynamo in Moscow.
Relevant evidence: Yes