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Norman Woman's Costume: A Woman of the Time of William I. (1066-1087)
"A twist of wool holds the gown at the waist. Under the gown the chemise shows. The neck of the gown is embroidered."
See the accompanying article: Women's Clothing in the Time of William the Conqueror and Matilda of Flanders. Source: Calthrop, Dion Clayton. English Costume: I. Early English. London, 1906.