Hugh Tyrrel

Hugh Tyrrel (Anglo-Norman: Huge Tyrel; died 1199) was an Anglo-Norman nobleman and crusader; he played a prominent part in the Norman invasion of Ireland, became the first baron of Castleknock and took part in the Third Crusade.

He was born in Hampshire, England, the son of Hugh Tyrrel the elder, who held substantial lands in England, and was also lord of Poix-de-Picardie in France. Their ancestor Walter Tirel (died after 1100) became notorious as the killer (whether the killing was intentional or not is still a matter of debate) of King William Rufus. On the death of his elder brother Walter, in about the year 1170, Hugh succeeded to all his father's estates.

In 1169 when Richard de Clare, 2nd Earl of Pembroke, nicknamed Strongbow, invaded Ireland on behalf of Henry II of England, Tyrrel accompanied him. By 1172 he was described as one of the right-hand men of Hugh de Lacy, Lord of Meath, who conferred on him the feudal barony of Castleknock. He built Castleknock Castle, possibly on the site of an earlier fortification.

When de Lacy left Ireland to join the King in France, he made Tyrrel Constable of Trim Castle. In 1173 the Lordship of Meath was invaded by Ruaidrí Ua Conchobair, High King of Ireland, and Trim Castle was besieged. A poet records Tyrrel's urgent appeal to Strongbow: "Through me the baron sends you word, Old Hugh Tyrrel of Trim, That you aid him in every way".

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