When copying data from this family tree, please include a reference to the origin: John Layton, "Royal House of Layton of Stuart and Rohan", database, Genealogy Online (https://www.genealogieonline.nl/royal-house-of-layton-of-stuart-and-rohan/P17433.php : accessed April 25, 2024), "Roland le Strange Duke of Brittany".
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