Frederick North (1732-1792), 2nd Earl of Guilford, was more often known by his courtesy title of Lord North, which he used from 1752 until 1790. He was Prime Minister from 1770-1782, and led Britain through most of the American War of Independence. He was the son of Francis North, 1st Earl of Guilford, and Lady Lucy Montagu, who died in 1734. He held various ministerial positions, including Chancellor of the Exchequer, under the Duke of Newcastle and William Pitt the Elder. He resigned as Prime Minister in March 1772, after the British lost the Battle of Yorktown, but returned in 1773 as Home Secretary in a short-lived coalition with Charles James Fox.