Talk:Frederick I, Duke of Upper Lorraine

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Could someone check the date of birth? If his father Wigeric died before 923, it's not propable Frederick is born c. 942. (Supposing embryo's weren't kept in fridges in those days ;) ). RonnieV (talk) 17:15, 20 May 2014 (UTC)[reply]

Talk:Frederick I, Duke of Upper Lorraine

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