SOURCE-09206Research NeededProbable
Wikipedia contributors, "Hugh d'Avranches, Earl of Chester," Wikipedia, The Free...
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Wikipedia contributors, "Hugh d'Avranches, Earl of Chester," Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/w/index.php?title=Hugh_d%27Avranches,_Earl_of_Chester&oldid=801767795 (accessedSeptember 30, 2017).