Copied from the Stradling family website "www.stradling.org.uk/docs/Oth_recs.htm":
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"Victoria County History of Warwickshire."
Certain lands in Losley [Loxley, of Robin Hood fame] were sold with the manor of Walton Mauduit by the Earl of Warwick to Simon de Wauton, Bishop of Norwich (1258-66). The bishop conveyed them to John de Wauton, who was probably his great-nephew. Subsequently John de Wauton received from Walter Giffard, Archbishop of York (1266-79), a grant of the two Walton manors and all his land in Loxley; this was possibly the carucate and 100s. in rents which Henry le Foun and Isabel his wife quitclaimed to the archbishop in 1278. The archbishop was perhaps acting as trustee for John de Wauton whose daughter and heir Maud, was in 1279 a ward of Godfrey Giffard, Bishop of Worcester, Walter's younger brother.
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This Mr. Simon, who bought property in Walton Deyville, became Bishop of Norwich in 1258 and died in 1265. His successor Sir John de Wauton died in or shortly before 1277, leaving a widow Isabel, who married Henry le Foun, and a young daughter Maud.
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Mr. Simon was elderly when he became bishop and may well have been married when young. John de Wauton died in 1277, and his widow Isabel married Henry le Foun. John's heir, his daughter Maud, was a child, and in 1278 Henry and Isabel conveyed the manors of Walton and other lands to Walter Giffard, Archbishop of York.
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Note: I believe that the above indicates that Simon may well have been more than "Uncle" to John, but was his father while he was married before taking the bishopric.