William Marshal

Type Figure Region England Time 1146–1219 Also known as Earl of Pembroke

The most outstanding knight and statesman of medieval England, he served three reigns—Henry II, Richard I, and King John.

Timeline

1194–1199London · EnglandAfter Richard returned to England in 1194 having been ransomed from the Holy Roman Empire, Marshal effectively governed the realm from 1194 to 1199, collecting the ransom, suppressing John's rebellion, and organizing defenses against Philip II's attacks on Normandy.
1199Winchester · EnglandAfter Richard's death in April 1199, Marshal decisively supported John over Arthur of Brittany in the succession crisis, endorsing him at the Winchester coronation and becoming the new king's most trusted advisor.
1199–1200Dublin · IrelandFrom 1199 to 1200 he continued to provide John with military and political counsel and administered his Irish lands, while taking part in military operations against Arthur's faction and diplomatic dealings with Philip II.

William Marshal, 1st earl of Pembroke — David Crouch https://www.britannica.com/biography/William-Marshal-1st-earl-of-Pembroke
William Marshal: Knighthood, War and Chivalry, 1147–1219 — David Crouch (2002)