In April 1696 the Dutch-born William Henry Nassau van Zuylestein, along with six of his siblings, was naturalized by act of Parliament.
Tunbridge’s father pushed him and all his younger brothers into the military life. He started his career when barely 21 years old, serving as a volunteer in the Cadiz expedition led by James Butler, 2nd duke of Ormond, who remained his principal patron throughout his career. Ormond later gave Tunbridge a brevet as colonel on the Irish establishment in 1704 but that spring Tunbridge was fighting in Flanders. He wrote to Ormond to apologize for his absence, explaining that his father had ‘hurried me into the field as soon as I came over’ and insisting that he had abandoned his responsibilities in Ireland ‘with no other design than to render myself capable to be fit for the post your grace has been pleased to give me’. Prophetically, he wrote in May 1704 from Flanders, just before the Danube campaign, that ‘one thing I see plainly, that we shall have a great many marches’.
For most of the remainder of 1704 and all of 1705 Tunbridge was either in London or Zuylestein and seldom appeared in Ireland. Nevertheless, Ormond was able to gratify his, and his father’s, requests for preferment. In 1705 he was elected for Ormond’s borough of Kilkenny in the Irish Parliament. Although classified as a Tory in 1707, he seldom attended the chamber in Dublin, owing to his military commitments abroad and political responsibilities in London.
Rochford attended the House from the first day of the new Parliament and was an assiduous attendee of its first session of 1708–9, coming to 84 per cent of its meetings. He was most active in the first months of 1709. On 21 Jan. he voted with the government in supporting the motion that a Scots peer who possessed a British title could vote in the election of Scottish representative peers. On 25 Jan. he chaired and reported from a committee of the whole house discussing the bill for the recruitment of land forces. On 21 Mar. he reported from the committee on the bill for Morison’s Haven, also known as Hadingtoun, in East Lothian; and on the last day of the session, 21 Apr. 1709, he was a manager in a conference to discuss the continuation of acts to prevent counterfeit coining.
By contrast Rochford came to only one meeting of Parliament (on 16 Feb. 1710) in all of the following (1709–10) session of Parliament. This was probably because of his increased military responsibilities. At the time of the vote on Dr. Sacheverell’s case in March 1710 he was marked as ‘employed abroad’ to explain his absence from the House. His military colleague James Stanhope† [1242], (later Earl Stanhope), considered Rochford a reliable Whig vote when he wrote to Robert Walpole† (later earl of Orford) in June 1710 that ‘my Lord Rochford, I believe, I need not recommend, when you remember that he has a voice in the House of Lords which I venture to promise will be as you and I think right’.
