Early in 1858 Morris published The Defence of Guenevere, which was almost unnoticed by contemporary criticism, but is now recognized as one of the pearls of Victorian poetry.
Wace, who, while translating Geoffrey, evidently knew, and used, popular tradition, combines these two, asserting that she was of Roman parentage on the mother's side, but cousin to Cador of Cornwall by whom she was brought up. The tradition relating to Guenevere is decidedly confused and demands further study.
The Welsh triads know no fewer than three Gwenhwyfars; Giraldus Cambrensis, relating the discovery of the royal tombs at Glastonbury, speaks of the body found as that of Arthur's second wife; the prose Merlin gives Guenevere a bastard half-sister of the same name, who strongly resembles her; and the Lancelot relates how this lady, trading on the likeness, persuaded Arthur that she was the true daughter of Leodegrance, and the queen the bastard interloper.
This episode of the false Guenevere is very perplexing.