"Habsburg family tree". Habsburg family website. 28 October 2023. Retrieved 28 October 2023.
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One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Albert II.". Encyclopædia Britannica. Vol. 1 (11th ed.). Cambridge University Press. p. 496. Endnote: see W. Altmann, Die Wahl Albrecht II. zum römische Könige (Berlin, 1886).