In 1492, during a feud between two noble families in Ireland, the Butlers (Earls of Ormond) and the FitzGeralds (Earls of Kildare), Black James, the nephew of the Earl of Ormond, took refuge from Gearoid Óg FitzGerald, Ireland's premier Earl, in the Chapter House of St. Patrick's Cathedral in Dublin. Unbeknownst to Black James, Gearoid Óg FitzGerald wanted nothing more than to end the bloody feud and so he pleaded with Black James to open the oak door to the Chapter House. Black James refused and, in desperation, Gearoid Óg FitzGerald ordered his soldiers to hack a hole into the centre of the door. Once the hole was made, he pleaded with Black James to reconcile their differences and in good faith placed his arm into the hole ("chancing one's arm") and called truce. Rather than cutting off Gearoid Óg FitzGerald's arm, Black James shook his rival's hand ending the long-standing feud. The Chapter House door later became known as the Door of Reconciliation as it facilitated peace and understanding amongst the feuding families.