Question: Who was born first, Vania King or Martina Navratilova?
Context: Judy Hill Nelson is an American author best known for her 1983–1991 romance (while married) with and eventual palimony suit against women's tennis star Martina Navratilova.  After their break-up, Nelson was the author of the books "Love Match: Nelson vs. Navratilova", chronicling her relationship with the tennis star, and "Choices: My Journey After Leaving My Husband for Martina and a Lesbian Life", chronicling her coming out as a lesbian in the mid-1980s.  She is the mother of two sons. Martina Navratilova (Czech: "Martina Navrátilová" ] ; born Martina Šubertová ] ; October 18, 1956) is a former Czechoslovak and later American tennis player and coach.  In 2005, "Tennis" magazine selected her as the greatest female tennis player for the years 1965 through 2005 and she is considered one of the best, if not the best, female tennis players of all time. First-seeded Martina Navratilova defeated ninth-seeded Kathy Jordan 6–2, 7–6 in the final to win the Women's Singles title at the 1983 Australian Open tennis tournament.  The tournament was played on grass courts at the Kooyong Stadium in Melbourne from 29 November through 11 December 1983.  Navratilova earned $75,000 prize money for winning the title, her 8th career Grand Slam singles title and her 2nd title at the Australian Open after 1981.  She improved her year record to 86 wins and 1 loss.  This tournament was also notable for being the first Australian Open in which Steffi Graf appeared in the main draw, and the last time that Billie Jean King appeared in the main singles draw of a grand slam. Martina Hingis and Sania Mirza were the defending champions, but lost in the second round to Vania King and Alla Kudryavtseva. <br> Billie Jean King and Martina Navratilova were the defending champions but only Navratilova competed that year with Pam Shriver. Vania King (; born February 3, 1989) is an American tennis player.  King won both the 2010 Wimbledon and 2010 US Open women's doubles titles with Kazakhstani partner Yaroslava Shvedova. Unmatched is a documentary about tennis players Martina Navratilova and Chris Evert, their decades-long on-court rivalry and lifelong friendship, created for ESPN's "30 for 30" documentary series.  Evert and Navratilova met in 80 matches, 60 finals and 14 grand slam finals with Navratilova sporting a 43-37 advantage. Martina Navratilova was the defending champion, and she successfully defended her title, defeating last year's finalist Chris Evert in the final.  This victory was Navratilova's sixth straight Major title, tying her with Margaret Court and Maureen Connolly for the most consecutive Grand Slam titles won.  Navratilova became the first player to win Grand Slams on clay, grass and hard court on the same calendar year, after having won the French Open and Wimbledon. Martina Navratilova was the record six-time defending champion, but she lost to Steffi Graf in the final, in what was a rematch of the 1987 final.  This was Graf's third step towards completing the first and so far only Calendar Year Golden Slam.  It was also the first of Graf's seven Wimbledon ladies' titles.  After Graf took a 5-3 lead in the first set, Navratilova won six straight games allowing her to win the first set and take a 2-0 lead in the second set.  Graf then came back winning 12 of the next 13 games and the match. Billie Jean King and Martina Navratilova were the defending champions, but King did not qualify for this year.  Navratilova partnered with Pam Shriver and successfully defended her title, defeating Barbara Potter and Sharon Walsh 6–0, 7–6 in the final.
Answer: Martina Navratilova