Alpaida was also known as Chalpaida. She was Pepin II's (635 or 640 - December 16, 714) concubine and mother to Pepin II's illegitimate son, Charles Martel (Charles the Hammer) (August 23, 686_ October 22, 741).
These legitimate children and grandchildren claimed themselves to be Pepin's true successors and with the help of his widow Plectrude tried to maintain the position of Mayor of the Palace after Pippin's death on December 16, 714.
However, Charles Martel, Pippin's son by his mistress, Alpaida (or Chalpaida), had gained favour among the Austrasians, primarily for his military prowess and ability to keep them well supplied with booty from his conquests.
Despite the efforts of Plectrude to silence her rival's child by imprisoning him, he became the sole Mayor of the Palace and de facto ruler of Francia.