Lucius O'Brien

Lucius O'Brien (1675–1717) was an Irish nobleman of the O'Brien family of Dromoland. Early life He was the son of Donat O'Brien, 1st Baronet and Lucia Hamilton, the daughter of Sir George Hamilton. His father sent him to England for further education aged 18 where he was enrolled in Mr. Foubert’s Academy in London's Brewer Street, off Golden Square. Married Life After the consideration of other candidates, it was decided he would marry Catherine, the daughter of Thomas Keightley an English courtier and official in Ireland who had links to Queen Anne through his marriage to her aunt Frances, a daughter of Edward Hyde, 1st Earl of Clarendon. Lucius and Catherine were married in the early months of 1701, "according to the rights and ceremonies of the Church of Ireland", and the Agreement was signed by Donat his friend Sir Thomas Southwell, Simon Purdon and Henry, Lord Shelbourne. The couple started their married life at Stonehall, a property belonging to Donat, and which a short time later became the residence of Henry and Susannah Stafford O'Brien.