By 1566, Ní Mháille had married a second time, this time to Risdeárd an Iarainn ("Iron Richard") Bourke, his nickname deriving from his ironworks at Burrishoole, the place of his principal castle and residence.
By 1566, O'Malley had married a second time, this time to Risdeárd an Iarainn ("Iron Richard") Bourke. His nickname may derive from his wearing a coat of mail inherited from his Anglo-Norman ancestors or from his control of the ironworks at Burrishoole, the place of his principal castle and residence.