Illustrations by Howard Pyle depicting King Arthur's Knights and their adventures.
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Sir Pellias and the Sorrowful Lady in Arroy
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Lancelot.
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Sir Lancelot frees a lady's hawk.
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Lancelot and Eloise the Fair.
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Lancelot meeting Queen Guinevere.
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Lamarack of Gales
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Ivory casket, 14th century, shows scenes with Gawain, Percival and Lancelot (crossing the Sword bridge in the second panel). The reference says Metropolitan Museum, New York so I assume this is in the Cloisters? I certainly missed it when I was there, but will look next time.