Two entries with the name Castle of Ladies.

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Castle of Ladies

Castle aux Dames

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A fortress on the opposite site of the Oscure River from the Castle of Maidens. Lancelot participated in a tournament fought between the two.

The Castle of Ladies was the home of Arthur’s Sir Flaundreus (Flandrin li Brez).

Scholars often refer to Canguin Rock in Chrétien de Troyes’s Perceval as the Castle of Ladies, but the text does not use this name.

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Sources
Vulgate Lancelot | 1215-1230
Le Morte Darthur | Sir Thomas Malory, 1469-1470

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Castle of Ladies

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Sagramore killed an evil knight named Greomar and siezed his castle, which Arthur named the Castle of Ladies. Sagremor gave the castle to Sir Laudon and his lady, Helyap.

The Formidable Knight, Greomar’s brother, later besieged the castle and was defeated by Gawain.

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Source
Le Livre d’Artus | Early 13th century

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