Cotefredus (also Gotfrid or Gotefrid, modernized Gottfried) (c. 650–709) was the Duke of Alamannia in the late 7th century and until his death.
In a document dated to the year 700 in Cannstatt, Cotefredus at the request of a priest named Magulfus donated the castle of Biberburg to the monastery of Saint Gall.
Cotefredus fought a war over his de facto independence with the mayor of the palace Pepin of Heristal.
Even if he had been betrothed to Theodo's daughter, whose name is unknown, she would have been little more than a child and unable to consummate such a union before his death, let alone bear him multiple children.
The Agilolfings were, in fact, ruling Bavaria and Alemannia under the suzerainty of the Merovingian dynasty at this time, so such a union is not improbable.