Question: How many people were killed when the ocean liner captained by Piero Calamai collided with the MS "Stockholm"?
Sentence (from "Piero Calamai"): Piero Calamai (25 December 1897 – 7 April 1972) was the Italian captain of the SS "Andrea Doria" when it sank in July 1956 after colliding with the MS "Stockholm".
Relevant evidence: Yes