Team Trinity (チーム・トリニティ, Chīmu Toriniti?), also referred as Trinity Siblings or Gundam Throne Meisters, were a fictional group featured in the Japanese anime series Mobile Suit Gundam 00. They first appeared in episode 16. Consisting of three siblings, their surname refers to the Christian doctrine, stating that God is one Being Who exists, simultaneously and eternally, as a mutual indwelling of three persons.

Source: Wikipedia