Maurice Roche, 8th Viscount Fermoy (1597–1670) was an magnate and soldier in southern Ireland, and a politician of the Irish Catholic Confederation.
He joined the rebels in the Irish Rebellion of 1641 in January 1642, early for Munster, by besieging Richard Boyle, 1st Earl of Cork, a Protestant, in Youghal.
[7] Maurice's mother was a daughter of James de Barry, 4th Viscount Buttevant, by his wife Ellen MacCarthy Reagh.
Of note are Redmond Roche, MP for County Cork, and Ellen, who married Charles MacCarthy, 1st Viscount Muskerry as his second wife.
In January 1642 Fermoy, together with Garret Barry, besieged Richard Boyle, 1st Earl of Cork, the most powerful of the Munster Protestants, in Youghal.
[27] In March and April, Muskerry and Fermoy[28] with 4,000 men[29] unsuccessfully besieged William St Leger, the Lord President of Munster, in Cork City.
[31] The town opened its gates willingly,[32] but the Protestants defended King John's Castle in the Siege of Limerick.