Alexander Frederick, Landgrave of Hesse (, 25 January 1863 â 26 March 1945) was a German prince of the House of Hesse.
He was the son of Prince Frederick William of Hesse-Kassel and Princess Anna of Prussia. From 1888 to 1925 he was Head of the electoral line of the House of Hesse, but abdicated his position to his brother Prince Frederick Charles of Hesse, on 16 March 1925. He was born with a visual impairment, and this disability, in addition to his morganatic marriage, played a part in his decision to abdicate.
On 25 March 1925, he married morganatically Baroness Gisela (17 January 1884 â 22 June 1965), daughter of Otto, Baron and Baroness Emilie Susanne Hildegard von Wolzogen-Neuhaus. She was court lady of Grand Duchess Hilda of Baden.
He received the following orders and decorations:
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