"Princess Maria Annunciata Isabella Filomena Sabasia of Bourbon-Two Sicilies, full Italian name: Maria Annunziata Isabella Filomena Sabasia, Principessa di Borbone delle Due Sicilie (24 March 1843 – 4 May 1871) was the mother of Archduke Franz Ferdinand, the archduke whose assassination in Sarajevo in 1914 precipitated the start of World War I." - (en.wikipedia.org 04.10.2020)
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