Howard was dubbed a knight of the Bath at Prince Charles’s creation as prince of Wales, no doubt at the behest of his father, then lord treasurer. In 1617 he was the recipient, along with his brothers Sir Robert and Sir William, of a grant of fines upon original writs in King’s Bench.
Howard depended entirely on his family ties for his parliamentary seats. In 1624 he was elected at Wallingford on the interest of his brother-in-law, Viscount Wallingford (William Knollys†), and also at Calne, where his father apparently nominated him on the strength of the substantial Howard estates in north Wiltshire.
According to Clarendon (Edward Hyde†), Howard owed his barony to Buckingham, but he withdrew from Court after the favourite’s assassination and gradually turned against the Crown.
