A 14th-century petition presented to the English Crown by John de Waldeboef claiming the lands of the Isle of Man and adjacent islands as heir to Reginald, formerly King of Man. The petition traces the descent of rights through Mary (daughter of Reginald, wife of Waldeboef) and her son William. The document is significant for establishing early claims to Manx sovereignty and illustrating the jurisdictional complexity between English and Scottish overlordship of Man.