Prospero Colonna di Paliano

The Honourable Prospero Colonna di Paliano SMOM
Formal portrait, c. 1903
Mayor of Rome
In office 6 July 1914 – 8 June 1919
Preceded by	Ernesto Nathan
Succeeded by	Adolfo Apolloni
In office December 1899 – October 1904
Preceded by	Emanuele Ruspoli
Succeeded by	Enrico Cruciani Alibrandi
Senator of the Kingdom
In office 16 June 1900 – 16 September 1937
Monarch	Umberto I
Member of the Italian Chamber of Deputies
In office 10 June 1895 – 17 May 1900
Constituency	Anagni
Personal details
Born	(1858-07-18)18 July 1858 Naples, Two Sicilies
Died	16 September 1937(1937-09-16) (aged 79) Rome, Italy
Spouse	Maria Ignazia Massimo
Children	Mario Pietro Fabrizio
Profession	Landowner, military officer

Prospero Colonna, Duke of Rignano, Prince of Sonnino (18 July 1858 – 16 September 1937) was an Italian politician and aristocrat. He was twice mayor of Rome (1899–1904, 1914–1919). He served in the Chamber of Deputies and Senate of the Kingdom of Italy.