Henry Grey, Duke of Suffolk, 3rd Marquess of Dorset KG KB (17 January 1517 – 23 February 1554), was an English courtier and nobleman of the Tudor period.

Through his father, he was a great-grandson of Elizabeth Woodville, the wife of King Edward IV, by her first marriage to Sir John Grey of Groby.

[2] In 1549, John Dudley, Earl of Warwick, overthrew the Protectorship and secured power by appointing loyal friends to the Privy Council.

[3] Henry Grey was created Duke of Suffolk on 4 or 11 October 1551 at Hampton Court, in the same ceremony that elevated John Dudley to the Dukedom of Northumberland.

Edward died on 6 July 1553, and three days later Suffolk, Northumberland, and other members of the Privy Council proclaimed Jane queen.

However, Mary had Henry Grey beheaded on 23 February 1554 at around nine to ten o'clock in the morning on Tower Hill,[7] after his conviction for high treason for his part in Sir Thomas Wyatt's attempt (January – February 1554) to overthrow her after she announced her intention to marry King Philip II of Spain.

According to Walter George Bell (writing in 1920),[8] in 1851 the severed head of the Duke of Suffolk was discovered in a vault in the Church of Holy Trinity, Minories, in the City of London, suggested to have been preserved by the tannin-rich oak sawdust used to pad the basket on the scaffold on which he had been beheaded 297 years earlier.

However, Bell also notes a scandal at Holy Trinity in 1786 in which a sexton had been found sawing and chopping up coffins in the vaults and using the wood to stoke the fire in his quarters.

[8] In later years, the head was sealed in a vault in the crypt at St Botolph's, until a planned conversion of the space into an office resulted in an archaeological investigation of the site between April and July 1990.