Pierre Louis Jean Casimir de Blacas

The Duke of Blacas
France Ambassador
to the Holy See
In office
11 June 1817  16 September 1824
Appointed byLouis XVIII
France Ambassador
to the Two Sicilies
In office
8 July 1815  11 June 1817
Appointed byLouis XVIII
Chief Minister of France
In office
2 May 1814  8 July 1815
MonarchLouis XVIII
Preceded byThe Prince of Talleyrand
Succeeded byOffice abolished and replaced by Prime Minister's office
Minister for the King's Household
In office
4 June 1811  8 July 1815
MonarchLouis XVIII
Preceded byThe Duke of Avaray
Succeeded byOffice vacant
Jacques Lauriston (1820)
Personal details
Born(1771-01-20)20 January 1771
Avignon, Comtat Venaissin, Papal enclave in France
Died17 November 1839(1839-11-17) (aged 68)
Vienna, Austria
Political partyUltra-royalist
Spouse(s)
Henriette du Bouchet de Sourches, Countess of Montsoreau
(m. 18141839)
ChildrenLouis, Duke of Blacas
ProfessionMilitary officer, diplomat, antiquarian
Military service
Branch/service French Royal Army
Years of service17901814
RankMaréchal de camp
Second lieutenant
UnitArmy of Condé (17911801)
15th Dragoon Regiment (17901791)
Battles/wars

Pierre-Louis Jean Casimir, Count of Blacas d'Aulps (10 January 1771 17 November 1839), later created 1st Duke of Blacas (1821), was a French antiquarian, nobleman and diplomat during the Bourbon Restoration.