Earl of Rochford

After the Revolution he was naturalized and served the king in the field, being raised to the English peerage in 1695.

Having gained experience as envoy at Turin from 1749 to 1753, he was Ambassador to Madrid from 1763 to 1766 and to Paris from 1766 to 1768.

He left no legitimate children when he died on 28 September 1781, and was succeeded by his nephew, William Henry, the 5th Earl.

The estates of the Earls of Rochford were in Suffolk and Essex, their principal residence being St Osyth Priory in the latter county.

[2] The earls of Rochford used the arms below, inherited via the founder of their Family Fredrick of Nassau, lord of Zuylestein, illegitimate son of Frederick Henry, Prince of Orange.