Complex sentence: He with his family escaped deportation on March 25 of the same year, two months after his birth, but his father was prisoned by Soviets in June and killed in a car accident in 1956, shortly after his release.
Split into simpler sentences: He with his family escaped deportation on March 25 of the same year, two months after his birth, though his father was inprisoned by Soviets in June. Valter would be killed in a car accident in 1956, shortly after his release.