References for Roger V. de Toeni

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Sir B.Burke: The Dormant and Extinct Peerage. London, 1866
Sir B.Burke: Burke's Peerage and Baronetage. London, 1999
J. Le Melletier: Les Seigneurs de Bohon. Coutances: Arnaud-Bellee, 1978
D.Schwennicke: Europäische Stammtafeln, Vol. III/4, Tafel 706. Marburg, 1989