Relena Darlian (リリーナ・ドーリアン, Rirīna Dōrian?) (aka Relena Peacecraft (リリーナ・ピースクラフト, Rirīna Pīsukurafuto)) is a 15 year old pacifist politician from the Sanc Kingdom (Northern Europe). Relena is also the Princess of the Sanc Kingdom, and the younger sister of Zechs Merquise (ゼクス・マーキス, Zekusu Mākisu?, taken from German sechs, lit. "six") aka Milliardo Peacecraft.
The XXXG-0SR Gundam Sandrock (aka Sandrock or Gundam Zero-Four) is a close quarters ground mobile suit, it is featured in the anime series Mobile Suit Gundam Wing. The unit is piloted by Quatre Raberba Winner.