Robin's fellow Crusader who dies in prison, extracting a vow to protect his sister Marian.
Peter's final request connects Robin to Marian and drives the protection plot.
Mortally wounded, Peter makes Robin swear to protect Marian, explicitly identifying her as his sister.
Their wartime companionship establishes Robin's return and his promise to Marian.
Robin and Peter escape an Ayyubid prison together after serving with King Richard on the Third Crusade.
Explore the full interactive character relationship map of Robin Hood: Prince of Thieves