During his reign, King Mendax fought against the Christians in the Crusades. Though he was originally a Christian king, he was sickened by the paltry justifications the Crusaders had for regaining the Holy Lands. Mendax fought in many battles during the Crusades, always on the side of whom he thought was the more innocent. After the fall of Constantinople in 1231, he decided his job as Defender of the Innocent was complete, gathered together wounded from both sides of that fateful battle and led them to the Castle Tîrgu.