 In fact, Charles' brother and political rival Carloman named his firstborn Pepin before Charles was even married.Charles, then, was naturally inclined to name his first son "Pepin"—announcing his own dynastic ambitions, clearing the ground for the eventual recognition of his son as emperor.However, Notker the Stammerer, writing long after Pepin's death, suggests that it was Himiltrude (Pepin's mother), and not Charles, who gave Pepin his name.