He took part in the settlement of Ireland and was granted lands in Garrycastle in the King's County.
[1] He also sat as Member of Parliament for Brackley from 1621 to 1622 and 1624 to 1625 and for Oxfordshire in 1626, from November 1640 to 1648 and in 1660.
In 1645 he was granted £4 a week by Parliament for damages caused by the King's forces at his Oxfordshire estate.
[1] Lord Wenman married Margaret, daughter of Edmund Hampden.
He died without surviving male issue in January 1665[2] and was succeeded by his younger brother, Philip.