First Prince of the Sword is the title given to the eldest brother of the Queen of Andor. The First Prince has a distinct role in the government, acting as the commander-general of the Queens's armies and as her military advisor. A prospective First Prince can be made to take oaths to protect and defend his sister, the Daughter-Heir of Andor, while both are still children as Gawyn Trakand was required to do before Elayne when he was "barely old enough to peer into her cradle."