Overview
Frithuwald was a seventh-century Anglo-Saxon ruler in Surrey, and perhaps also in modern Berkshire and Buckinghamshire, who is known from two surviving charters. He was a sub-king ruling under King Wulfhere of Mercia. According to late hagiographical materials, he was a brother-in-law of Wulfhere. The monks of Saint Peter's Minster, Chertsey, revered Frithuwald, whom they considered the founder of their monastery, as a saint.
Origins
While it has been argued that Frithuwald was a native ruler of Surrey, the consensus view makes Frithuwald a Mercian or Middle Anglian appointed by Wulfhere to rule over Surrey. His charters state that he had one son, but do not name him. The princeps Frithuric who was active in Mercia in the reign of Wulfhere's brother and successor Æthelred is presumed to be a kinsman of Frithuwald, perhaps his son.
The twelfth century life of Saint Osgyth of Aylesbury states that Osgyth was the daughter of Wilburh, sister of King Wulfhere, and a certain King Fredeswald. As Fredeswald and Frithuwald are simply variant forms of the same name, if this Fredeswald did exist, "it can hardly be doubted that he was the same man as the sub-king of the Chertsey charter".
The possible Frith family may also have included the eighth-century figures Saint Frithuswith, and Frithugyth, wife of King Æthelheard of Wessex.
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