Books by duke of Aquitaine Guillaume IX:
Books in the extended shelves:
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Guillaume IX, duke of Aquitaine: Die Lieder Guillems IX, Grafen von Peitieu, Herzogs von Aquitanien (L.F. Fues, 1850), also by Adelbert von Keller and Wilhelm Ludwig Holland (page images at HathiTrust)- Guillaume IX, duke of Aquitaine: Lieder Guillems IX, Grafen von Peitieu, Herzogs von Aquitanien (L.F. Fues, 1848), also by Adelbert von Keller and Wilhelm L. Holland (page images at HathiTrust)
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