Jones, Sir Roger, [168]
— Henry, Dean of Kilmore, successively Bishop of Clogher and of Meath, [316], [324]-[325], [339]-[341]
Jonson, Ben, [90]
Julianstown, battle, [339], [345], [347]-[349], [353], [356]
Jura island, [144]
Juxon, William, Bishop of London, afterwards Archbishop of Canterbury, [281]
Kavanagh, Donnel Spaniagh, [92], [96]-[97]
Kavanagh clan, [99], [153]-[160]
Kells, in Meath, [171]