Sir John de Wogan, Cambro-Norman judge styled lord of Picton, ceases to be Justiciar of Ireland on August 6, 1312 although remaining nominally justiciar until April 1313. He serves as Justiciar of Ireland from 1295 to 1313.
There are several dubious theories about Wogan’s ancestry, and uncertainty exists about his wives, sons, and other relations. He comes from Picton Castle in Pembrokeshire and is a vassal of William de Valence, 1st Earl of Pembroke. He comes to have lands in Pembrokeshire, Somerset, Dorset, Devon, Wiltshire, and Oxfordshire. He represents de Valence at an Irish court case in 1275, and in 1280 he is steward of Wexford, Valence’s Irish liberty. He is an eyre in England from 1281 to 1284, and returns to Ireland in 1285. In 1290 he is a referee with Hugh de Cressingham in a dispute between Queen Eleanor and de Valence and his wife.
In December 1295 Wogan takes office as justiciar and organises a two-year truce between the feuding Burkes and Geraldines. In 1296 he organises a force with Richard Óg de Burgh, 2nd Earl of Ulster, Theobald Butler, and John FitzGerald, 1st Earl of Kildare, to assist Edward I in the First War of Scottish Independence. The king entertains them at Roxburgh Castle in May. After his return to Ireland, Wogan “kept everything so quiet that we hear of no trouble in a great while.” The Parliament of Ireland he summons in 1297 is for long compared to the English “Model Parliament” of 1295, though historical opinion now places less importance on it.
In February 1308, under orders from the new king Edward II, Wogan suppresses the Knights Templar in Ireland. In June 1308 his forces are defeated by the O’Tooles and O’Byrnes, who are harrying The Pale from the Wicklow Mountains. From September 1308 to May 1309 Piers Gaveston, 1st Earl of Cornwall is in Ireland as “king’s lieutenant,” a new position outranking the justiciar, and he has more success against the Gaels. Wogan leaves Ireland in August 1312 although remaining nominally justiciar until April 1313.