From Grammont's notes
Richard Butler, Earl of Arran, fifth son of James Butler, the first Duke of Ormond. He was born 15th July, 1639, and educated with great care, being taught every thing suitable to his birth, and the great affection his parents had for him. As he grew up, he distinguished himself by a brave and excellent disposition, which determined him to a military life. When the duke, his father, was first made lord-lieutenant of Ireland, after the Restoration, his majesty was pleased, by his letter, dated April 23, 1662, to create Lord Richard, Baron Butler of Cloghgrenan, Viscount Tullogh, in the county of Catherlough, and Earl of Arran, with remainder to his brother. In September, 1664, he married Lady Mary Stuart, only surviving daughter of James Duke of Richmond and Lennox, by Mary, the only daughter of the great Duke of Buckingham, who died in July, 1667, at the age of eighteen, and was interred at Kilkenny. He distinguished himself in reducing the mutineers at Carrick-Fergus, and behaved with great courage in the famous sea-fight with the Dutch, in 1673. In August that year, he was created Baron Butler of Weston, in the county of Huntingdon. He married, in the preceding June, Dorothy, daughter of John Ferrars, of Tamworth Castle, in Warwickshire, Esq. In 1682, he was constituted lord-deputy of Ireland, upon his father's going over to England, and held that office until August, 1684, when the duke returned. In the year 1686, he died at London, and was interred in Westminster-abbey, leaving an only daughter, Charlotte, who was married to Charles Lord Cornwallis.