He was the grandson of [[Charles Martel]] the powerful Mayor of the Palace. When King [[Childeric III]] was deposed at Soissons and replaced with his father he became the Heir Apparent to the Frankish throne. | He was the grandson of [[Charles Martel]] the powerful Mayor of the Palace. When King [[Childeric III]] was deposed at Soissons and replaced with his father he became the Heir Apparent to the Frankish throne. |