He accompanied Richard I to Palestine for the third Crusade, taking a distinguished part in the siege of Acre in 1187. He had been in the Holy Land for 15 years. He returned to England around 1201. As his son carried the same name there are confusions but a "Ralph St. Leger" was a signatory to Magna Carta in 1215. Stemmata Leodegaria. His tomb still exists in Ulcombe Church.