Who was won more doubles titles,  Mary-Ann Eisel or Fiorella Bonicelli?
Mary-Ann Eisel Mary–Ann Eisel (born November 25, 1946) is an American former tennis player. She was the US Open mixed doubles champion in 1968.
Elena Vesnina Elena Sergeyevna Vesnina (Russian: Еле́на Серге́евна Веснина́ ] ; born 1 August 1986) is a Russian professional tennis player. Her career-high rankings are world No. 13 in singles and World No. 3 in doubles. Vesnina is a four-time Grand Slam champion in doubles competition, having won the 2013 French Open, 2014 US Open, and 2017 Wimbledon Championship tournaments with Ekaterina Makarova, and the 2016 Australian Open mixed doubles title with Bruno Soares.