What is the surname of the person the Czech winner of 12 Grand Slam doubles titles and four Grand Slam mixed doubles titles defeat in the 1998 wimbledon women's singles semifinals?
1998 Wimbledon Championships – Women's Singles: Martina Hingis was the defending champion, but she was defeated by Jana Novotná in the semifinals in a rematch of last year's final. Jana Novotná: Jana Novotná (] ; born 2 October 1968) is a former professional tennis player from the Czech Republic. Jana Novotná:  Novotná also won 12 Grand Slam women's doubles titles and four Grand Slam mixed doubles titles.
Hingis