Melion
...that in the anonymous Breton lai Melion, one of King Arthur's knights was transformed into a werewolf by his wife using a magic ring before she ran off with another man to Ireland?
...that in the anonymous <a href="./Breton_lai" id="mwBfM" rel="mw:WikiLink" title="Breton lai">Breton lai</a> <i id="mwBfQ"><b id="mwBfU"><a href="./Melion" id="mwBfY" rel="mw:WikiLink" title="Melion">Melion</a></b></i>, one of <a href="./King_Arthur" id="mwBfc" rel="mw:WikiLink" title="King Arthur">King Arthur</a>'s <a href="./Knight" id="mwBfg" rel="mw:WikiLink" title="Knight">knights</a> was transformed into a <a href="./Werewolf" id="mwBfk" rel="mw:WikiLink" title="Werewolf">werewolf</a> by his wife using a <a href="./Magic_ring" id="mwBfo" rel="mw:WikiLink" title="Magic ring">magic ring</a> before she ran off with another man to <a href="./Ireland" id="mwBfs" rel="mw:WikiLink" title="Ireland">Ireland</a>?