The 2015 Six Nations Championship, known as the 2015 RBS 6 Nations because of the tournament's sponsorship by the Royal Bank of Scotland, was the 16th series of the Six Nations Championship, the annual rugby union tournament. It was contested by England, France, Ireland, Italy, Scotland and Wales. Including the competition's previous incarnations as the Home Nations Championship and Five Nations Championship, it was the 121st edition of the tournament. Ireland retained their title from the previous year, their 13th triumph in the competition. This was the first time that Ireland had retained their title outright since 1949, having shared the 1983 championship with France after winning in 1982. They were the first team to be awarded the redesigned Six Nations trophy introduced for 2015, which featured six sides as opposed to five. Participants * Parisse did not play in Italy's final match at home against Wales after an injury sustained in their round four match against France. Leonardo Ghiraldini took his place as captain. Squads Table Fixtures The 2015 Six Nations Championship commenced with a Friday night fixture, once again held at the Millennium Stadium in Cardiff, this time between Wales and England. Round 1 Notes: Welsh captain Sam Warburton earned his 50th cap for Wales. Notes: Marco Barbini made his international debut for Italy. Seán O'Brien was set to return to the Irish line-up after injury, but was replaced by Tommy O'Donnell in the starting XV following injury in the pre-game warm-up. Notes: Loann Goujon made his international debut for France. Sam Hidalgo-Clyne made his international debut for Scotland. Round 2 Notes: Giulio Bisegni made his international debut for Italy. Nick Easter, aged 36, became the oldest English player to score a try in a test match. Round 3 Notes: Enrico Bacchin and Michele Visentin made their international debuts for Italy. Ben Toolis and Hamish Watson made their international debuts for Scotland. Italy got its first Six Nations win since beating Ireland 22–15 in 2013, and its second away win since beating Scotland 37–17 in 2007. Notes: Brice Dulin's try was France's first try against Wales since their 2011 Six Nations fixture. Wales captain Sam Warburton equalled Ryan Jones' record of 33 Tests as captain. George North became the youngest player to earn 50 international caps (47 for Wales, 3 for the British and Irish Lions) at the age of 22, surpassing Australia's Joe Roff, who was 24.