Baron Esmonde was a title in the Peerage of Ireland.
He had earlier renounced the Roman Catholic faith.
However, he married a Roman Catholic wife, Margaret O'Flaherty, daughter of Murrough O'Flaherty, Chief of Iar Connacht, with whom he had a son, Thomas.
In 1629, three years before his father's elevation to the peerage, Thomas was created a baronet, of Ballynastragh in the County of Wexford.
As he was the child of a mixed marriage, the legality of which was disputed (the position was further complicated by his father making a second marriage while his mother was still alive), he was not allowed to succeed in the barony, which became extinct on Lord Esmonde's death in 1646.