Henry Wriothesley, 3rd Earl of Southampton KG (6 October 1573 – 10 November 1624), (pronunciation uncertain: /ˈraɪzli/ "Rizely" (archaic), /ˈrɒtsli/ (present-day) and /ˈraɪəθsli/ have been suggested), was the only son of Henry Wriothesley, 2nd Earl of Southampton, and Mary Browne, daughter of Anthony Browne, 1st Viscount Montagu.