E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
daughter of Corineus and wife of Locrin, son of Brute, the legendary king of Britain. She was divorced, and Locrin married Estrildis, by whom he already had a daughter named Sabrina. Guendolna, greatly indignant, got together a large army, and near the river Stour a battle was fought, in which Locrin was slain. Guendolna now assumed the government, and one of her first acts was to throw both Estrildis and Sabrina into the river Severn. (Geoffrey. Brit. Hist., ii. chaps. 4, 5.)