10th Baron Arundell of Wardour. Wife of Mary Anne Grenville. 

• Born: 3 November 1785
• Parents: James Everard Arundell (9th Lord Arundell of Wardour; 1763-1813) and Maria Christiana Arundell (1764-1805)
• Brother: Henry Benedict (1804-1862; 11th Lord Arundell of Wardour)
• Married: Mary Anne Grenville 26 February 1811; no children
• Became 10th Baron Arundell of Wardour on the death of his father: 14 July 1817
• Died: 21 June 1834.

Arundell was educated at Stonyhurst college. He served in a volunteer regiment during the Napoleonic Wars and became an office in the Wiltshire Yeomanry. He was appointed Captain of the Sarum Troop on 21 August 1817. Arundell was a scholar and antiquarian, and an author of chapters in Sir Richard Colt Hoare's History of Wiltshire. He spent long periods on the continent.

Although never politically minded, Arundell was admitted to the House of Lords with the Catholic Emancipation Act of 1829. 

In the journal of the House of Lords, II George IV., on the Assembly of Parliament on 4th Feb., 1830, we read, “This day James Everard Lord Arundell of Wardour, sat first in Parliament; his Lordship having first, at the Table, taken and subscribed the Oath appointed to be taken by the Act of the Tenth Year of the Reign of His present Majesty by Peers professing the Roman Catholic Religion.” (Hirst)

Arundell also voted against the Reform Bill, the only Catholic member of the House of Lords to do so. He wished to get rid of the rotten boroughs but opposed other clauses in the Bill. His actions caused some consternation in Wiltshire, leading to his resignation from the Lords: 

The first great measure that occupied Lord Arundell’s attention in Parliament was the Reform Bill, and as the following extract from the Annals of the Wiltshire Yeomanry shows, the vote he gave soon brought him into collision with his former friends and comrades in arms. “The country was, however, as a whole, strongly in favour of Reform, and political feeling ran so high that a mutiny nearly occurred in the Salisbury troop, because Lord Arundell had voted against the Bill. A remonstrance, signed by Sergeant-Major Peniston and thirty troopers, was forwarded to him. Mr. Everett took Lord Arundell’s part very strongly, and so much unpleasantness was the result that he eventually judged it prudent to resign. The dissensions were composed by the exertions of Mr. Peniston, Sen., though not before eight troopers had left. Lord Arundell seems to have taken this unruly proceeding very much to heart, as he apparently decided on resigning at the very first opportunity, and did in fact do so the following year.” (Hirst)

Politician Edward Fox met Arundell and his wife in Italy and was not particularly complimentary.