Regent

Regent, a ruler, especially one who exercises sovereign authority during the minority, absence, or disablement of the sovereign of a state. The most notable regents in British history are the Duke of Gloucester (1422-47), George, Prince of Wales (1811-20), and in Scotland Murray (1567-70). The Protectors Somerset and Warwick in the reign of Edward VI. were members of a Council of Regency. At the old universities the term is applied to a resident graduate who takes part in the management of university affairs; but at Cambridge it is obsolete.