Found 2 boys and girls with the meaning of guinevere's
Carmelide / 9 letters 
Meaning of Carmelide In Arthurian Legend, Carmelide means Guinevere's father More
Gwenhwyfach / 11 letters 
Meaning of Gwenhwyfach In Arthurian Legend, Gwenhwyfach means Guinevere's sister More

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