Background
He was the third son of Sir Matthew Deane, 3rd Baronet and his wife Jane Sharpe, only daughter of Reverend William Sharpe.
He was the third son of Sir Matthew Deane, 3rd Baronet and his wife Jane Sharpe, only daughter of Reverend William Sharpe.
He was invested to the Privy Council of Ireland in 1768 and represented Tallow in the Irish House of Commons from 1757 to 1768. The following year, he stood for Carysfort, a seat he held until his death in 1770.