Duchy of Aosta

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Coat of arms of the Duchy of Aosta

The Duchy of Aosta, originally the County of Aosta, was a state ruled by the House of Savoy from the early 11th century until the late 18th, when its independent institutions were aligned with those of the Principality of Piedmont. The title "Duke of Aosta" continued to be used by the second sons of the Savoyard monarch. The land of the duchy is today a part of Italy.

Duke Emmanuel Philibert made French the official language of the duchy in 1561,[1] but it retained its own traditional institutions as late as 1766.[2] It received its first intendant in 1773. It had its own taxation system down to 7 October 1783, when it was brought under the cadaster.[3] According to Jean-Baptiste de Tillier (died 1744):

The duchy of Aosta has always been a state, forming a single undivided body. The seventy-eight church-towers, or rather the cities, towns, parishes and separate communities which exist in the Valley, are members of this state.


  1. ^ Street, 398.
  2. ^ Farrell-Vinay, 253.
  3. ^ Kain and Baigent, 364.


  • Giovanna Farrell-Vinay. "Welfare Provision in Piedmont", Health Care and Poor Relief in 18th- and 19th-century Southern Europe, Ole Peter Grell, Andrew Cunningham, Bernd Roeck, eds. (Burlington: Ashgate, 2005), 250–88.
  • Roger J. P. Kain and Elizabeth Baigent. The Cadastral Map in the Service of the State: A History of Property Mapping. University of Chicago Press, 1992.
  • C. W. Previté-Orton. The Early History of the House of Savoy (1000–1233). Cambridge: Cambridge University Press, 1912.
  • Christopher Storrs. War, Diplomacy and the Rise of Savoy, 1690–1720. Cambridge University Press: 1999.
  • Jack D. Street, "The Independence of Savoy and Autonomy of the Valle D'Aosta", The French Review 71 3 (1998), 396–404.
  • Geoffrey Symcox. Victor Amadeus II: Absolutism in the Savoyard State, 1675–1730. University of California Press, 1983.