Plectrude
Plectrude (or Plectrudis) (died 717) was the consort of Pepin of Herstal, the mayor of the palace and duke of the Franks, from about 670. She was the daughter of Hugobert, seneschal of Clovis IV, and Irmina of Oeren. She was the regent of Neustria during the minority of her grandson Theudoald from 714 until 716.
Biography
Plectrude is described as politically active and influential upon her husband and his reign. She brought a large amount of property to the Arnulfing house.
During the reign of Pepin, she appears as his joint signatory in every legal instrument issued by him that is still preserved. This was unusual during this age.
In 714, her son Grimoald was murdered. She ensured Pepin II's assent that Theudoald, Grimoald's son, would be his main heir. When Pepin died soon thereafter (714), she took power in Neustria as regent of the under age Theudoald. To ensure her reign, she imprisoned in Cologne Charles Martel, Pepin II's son with his second wife Alpaida. Charles is often said to have been illegitimate, but this is considered by many today an anachronistic interpretation of his status. Charles' contemporaries probably did not consider him illegitimate, as he was born while his mother, Alpaida, was married to Pepin; the Frank noblemen practiced polygamy in this period. In 715, the Neustrian nobility rebelled against her in alliance with Radbod of Friesland and defeated her in the Battle of Compiègne 26 September 715, causing her to take refuge in Cologne, which was the homeland of her family clan and where she kept the money of Pepin.