On 14 February 1786, in London, Lord Petre married Mary Bridget Howard (29 September 1767-30 May 1843), sister of the 12th Duke of Norfolk.
Norfolk | Duke University | Duke Ellington | George Bernard Shaw | Duke | Duke of Wellington | William Howard Taft | Norfolk, Virginia | John Howard | Howard Hughes | Prince William, Duke of Cambridge | Howard Stern | Duke of York | Howard University | 12th United States Congress | Ron Howard | Howard Dean | Norfolk Island | Howard Hawks | Howard Zinn | The Howard Stern Show | Robert E. Howard | Duke of Norfolk | Bernard of Clairvaux | Bernard Montgomery, 1st Viscount Montgomery of Alamein | Duke of Edinburgh | Duke of Burgundy | Prince Arthur, Duke of Connaught and Strathearn | George Villiers, 1st Duke of Buckingham | Prince Andrew, Duke of York |