Iseult Gonne (1894-1954) was the daughter of Irish revolutionary Maud Gonne.
― Anonymous User 8/26/2011
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This is not an overly famous reference, but Iseult is a major character in Kate Forsyth's Witches of Eileanan series. She is inclined towards being a warrior, while her twin Isabeau is drawn to the path of the sorceress.