Thiadsvind also known as Theudesinda or Theodelinda (677 - ?) was the daughter of the Friesian king Redbad. In 711 she was married to Grimoald the Younger the eldest son of Pepin of Herstal.[1] The marriage was officiated by archbishopric or bishopric of the Frisians Willibrord.[2] They had two sons: Theudoald and Arnold.