Charles Martel ( Latin: Carolus Martellus, English: Charles "the Hammer") (ca. 688 – 22 October 741) was proclaimed Mayor of the Palace and ruled the Franks in the name of a titular King. Late in his reign he proclaimed himself Duke of the Franks (the last four years of his reign he did not even bother with the façade of a King) and by any name was de facto ruler of the Frankish Realms. In 739 he was offered an office of Roman consul by the Pope, which he rejected, ^[1] possibly not to conflict with Theodatus Ursus who already occupied the office by appointment of the Byzantine emperor Leo III the Isaurian. He expanded his rule over all three of the Frankish kingdoms: Austrasia, Neustria and Burgundy.