William Henry Fitzroy, 6th Duke of Grafton (5 August 1819 â 21 May 1882), styled Viscount Ipswich until 1847 and Earl of Euston between 1847 and 1863, was a British peer and Liberal Party politician. He was born in London and educated at Harrow, and after went to the Royal Military College, Sandhurst.
He was the eldest son of Henry FitzRoy, 5th Duke of Grafton and his wife Mary Caroline Berkeley, who were married on 20 June 1812 in Lisbon. At the time his father was an officer fighting with the Duke of Wellington in the Peninsular War.
At the 1847 general election, he was elected unopposed as a Member of Parliament (MP) for the borough of Thetford in Norfolk, a seat held by his father from 1834 to 1841. He was returned unopposed at the next three general elections, and held the seat until he succeeded to his father's peerage in 1863. As well as the titles, he inherited almost 26,000 acres.
In 1860, he was appointed lieutenant-colonel in command of the 1st Administrative Battalion of the Northamptonshire Rifle Volunteers.
On 10 February 1858, Grafton married the Hon. Marie Anne Louise Baring (1833âÂÂ1928), the daughter of Francis Baring, 3rd Baron Ashburton and Claire Hortense Maret (a daughter of the former Prime Minister of France, Hugues-Bernard Maret, 1st Duke of Bassano). He spent the winter and spring each year at Hyères because he and his wife both suffered from ill health.
His London residence was No. 4 Grosvenor Place, Belgravia from April 1874 until his death.
He died childless in 1882, aged 62, in London and was succeeded as Duke of Grafton by his younger brother, Augustus. His widow died on 8 April 1928.