sentences:  Giorgi was the eldest son of Mamia III Gurieli, Prince of Guria, and Elene, daughter of Prince Giorgi Abashidze.When Mamia seized the throne of Imereti in October 1712, Giorgi was made by his father as regent of Guria to the opposition of his younger brother, Levan.On Mamia's death on 5 January 1714, Giorgi Gurieli became prince-regnant.