Question: Who is the sibling-in-law of Vikki Lamotta?
Sentence (from "Vikki LaMotta"): Vikki LaMotta (January 23, 1930 – January 25, 2005), born Beverly Thailer, was an American model known as the second wife of champion boxer Jake LaMotta, during his peak years of success, during which time Vikki became a celebrity.
Relevant evidence: Yes