_:vb8347889	<http://www.w3.org/1999/02/22-rdf-syntax-ns#value>	"In the thirteenth century, Frederick II acquired an umbrella cockatoo from the Sultan of Babylon, and in the fourteenth century, Charles IV of France had an Alexandrine parakeet in his aviary."@en .
_:vb8347889	<http://purl.org/dc/terms/bibliographicCitation>	"2021, Marcy Norton, \u201CGoing to the birds: animals as things and beings in early modernity\u201D, in Paula Findlen, editor, Early Modern Things: Objects and their Histories, 1500\u20131800 (Early Modern Themes), 2nd edition, Routledge, \u2192ISBN, part I (The ambiguity of things), page 60:"@en .