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In page Maria Carolina of Austria:

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In June 1800, Maria Carolina traveled with her three unmarried daughters, her younger son Leopoldo, and accompanied by William and Emma Hamilton and Nelson over Livorno, Florence, Trieste and Laibach to Vienna, where she arrived two months later. Maria Carolina stayed two years in her homeland, where she arranged advantageous marriages for her children. In the family circle, she spent most time with her favorite grandchild, Archduchess Marie Louise of Austria, who later became the wife of her arch-enemy Napoleon.[citation needed]