Annals of Ireland is in Modern Era.
The earl of Desmond (James Fitzgerald), was treacherously killed by his own people at Rath Gaola (Rathkeale, county of Limerick), at the instigation of his brother John; but John and all the murderers were expelled by Maurice1, the son of the earl.
Note 1. A mistake for brother.
1488. John Mantach, the principal agent in the death of the earl of Desmond, was put to death by Maurice, the son1 of the earl, and Maurice, the son of the earl, was nominated earl.
Note 1. A mistake for brother.