Klaudia Jans-Ignacik and Kristina Mladenovic were the defending champions, but Jans-Ignacik could not participate on account of becoming a mother in early 2013.
 Mladenovic played alongside Galina Voskoboeva, but lost in the first round to Julia Görges and Barbora Záhlavová-Strýcová.
Irina-Camelia Begu and Anabel Medina Garrigues were the defending champions, but chose not to participate together.
 Begu played alongside Vania King, but lost in the first round to Michaëlla Krajicek and Kristina Mladenovic.
 Medina Garrigues teamed up with Yaroslava Shvedova, but lost in the semifinals to Krajicek and Mladenovic.
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Kristina Mladenovic and Lucie Šafářová were the defending champions, but Mladenovic chose not to participate this year.
 Šafářová played alongside Květa Peschke, but they lost in the first round to Chan Hao-ching and Chan Yung-jan.
Rebecca June Hewitt ( Cartwright; born 23 July 1983) is an Australian actress and singer.
 From 1998 to 2005, Hewitt played Hayley Smith Lawson on the soap opera "Home and Away".
 As Bec Cartwright, Hewitt released an eponymous pop music album in 2002.
 In 2005, she married professional tennis player, Lleyton Hewitt.
Stéphanie Foretz Gacon and Kristina Mladenovic were the defending champions, but Mladenovic chose not to participate.
 Foretz Gacon partnered up with Julie Coin, but they lost in the first round to Magda Linette and Katarzyna Piter.
Roger Federer won three Grand Slams in 2004 for the first time in his career.
 The first came at the Australian Open over Marat Safin, 7–6(3), 6–4, 6–2.
 He went on to win his second Wimbledon crown over Andy Roddick, 4–6, 7–5, 7–6(3), 6–4.
 In addition, Federer defeated the 2001 US Open Champion Lleyton Hewitt at the US Open for his first US Open title, 6–0, 7–6(3), 6–0.
 Furthermore, Federer won three ATP Masters 1000 events, one on clay at Hamburg, and two on hard court in Indian Wells and Canada.
 Federer took the ATP 500 series event at Dubai, and wrapped up the year for the second time over Lleyton Hewitt at the Tennis Masters Cup.
 Federer was the first player to win three Grand Slams in a single season since Mats Wilander in 1988.
Caroline Garcia and Kristina Mladenovic were the defending champions, but Garcia chose not to participate this year.
 Mladenovic played alongside Svetlana Kuznetsova, but lost in the first round to Kiki Bertens and Johanna Larsson.
Lleyton Glynn Hewitt {'1': ", '2': ", '3': ", '4': "} ( ; born 24 February 1981) is a retired Australian professional tennis player and former world no. 1.
 He is the last Australian male to win a Grand Slam singles title.
Kristina "Kiki" Mladenovic (Serbian: Кристина Младеновић, "Kristina Mladenović", ] ; born 14 May 1993) is a French professional tennis player.
Chan Hao-ching and Kristina Mladenovic were the defending champions, but Mladenovic decided not to participate.
 Chan played alongside Chan Yung-jan but lost in the first round to Anna-Lena Friedsam and Alison Van Uytvanck.

Question: Who was born first, Kristina Mladenovic or Lleyton Hewitt?
Answer: Lleyton Glynn Hewitt