When William III Duke of Aquitaine was born on 22 October 0915, in Poitiers, Vienne, Nouvelle-Aquitaine, France, his father, Ebles Manzer duc d'Aquitaine, was 39 and his mother, Emilienne, was 19. He married Gerloc-Adèle de Normandie duchesse d'Aquitaine in 0935. They were the parents of at least 1 son and 1 daughter. He died on 3 April 0963, in Saint-Maixent-l'École, Deux-Sèvres, Poitou-Charentes, France, at the age of 47, and was buried in Saint-Maixent-l'École, Deux-Sèvres, Poitou-Charentes, France.
English: nickname from Middle English duk(ke), duck, doke, dook ‘duck’ (Old English dūce), either from a perceived resemblance (perhaps a waddling gait) or from association with wild fowling. Compare Duck , Drake .
English: from the Middle English personal name Duk or Duke. In northern England this is usually a pet form of Marmaduke. It may alternatively be a survival of one or more Old English personal names, though it is uncertain whether they were still current in the period of surname formation. Old English Ducc(a) is attested in placenames like Duxford (Cambridgeshire) and Duckington (Cheshire), and was perhaps interchangeable with Docc, attested in Doxey (Staffordshire) and Doxford (Northumberland). Duke could also represent Old English Deowuc (as in Deuxhill, Shropshire). A surname from Marmaduke is on record until at least 1881 and derives from the personal name Marmaduke, apparently an Anglo-Norman French pronunciation of Old Irish Maolmaedóc ‘devotee of Maedóc’; see Duckett .
Americanized form of Polish Duk: nickname from dukać ‘to stammer or falter’.
Guillaume III de Poitiers, dit Guillaume Tête d'Étoupe, (né en 910 - mort le 3 avril 963 à Saint-Maixent, Deux-Sèvres), comte de Poitiers sous le nom de Guillaume Ier à partir de 934, et duc d'Aquitai …
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