There are furthermore several other variants of this motif in medieval literature. In Ulrich's "Lanzelet", Valerin, the King of the Tangled Wood, claims the right to marry her and carries her off to his castle in a struggle for power that reminds scholars of her prescient connections to the fertility and sovereignty of Britain. Arthur's company saves her, but Valerin kidnaps her again and places her in a magical sleep inside another castle surrounded by snakes, where only the powerful sorcerer Malduc can rescue her. In "Diu Crône", Guinevere's captor is her own brother Gotegrim, intending to kill her for refusing to marry Gasozein who claims to be her rightful husband, and her saviour is Gawain. In "Durmart le Gallois", Guinevere is delivered from her peril by the eponymous hero. In the "Livre d’Artus", she is briefly taken prisoner by King Urien during his rebellion against Arthur. The 14th-century Welsh poet Dafydd ap Gwilym alludes to Guinevere's abduction in two of his poems.