Aleksey Danilovich Kivshenko (Russian: Алексей Данилович Кившенко; 22 March 1851, Venyov - 2 October 1895, Heidelberg) was a Russian painter, primarily of historical scenes.
 Among the best-known were those depicting the Russo-Turkish Wars.
 He also created hunting and genre scenes and was associated with the Peredvizhniki.
Archibald Meston (26 March 1851 – 11 March 1924) was an Australian politician, civil servant, journalist, naturalist and explorer.
This is a list of recordings of "Rigoletto", an opera by Giuseppe Verdi with an Italian libretto by Francesco Maria Piave based on the play "Le roi s'amuse" by Victor Hugo.
 It was first performed at La Fenice in Venice on 11 March 1851.
Doroteo Vasconcelos Vides y Ladrón de Guevara (1803–1883) was President of El Salvador 7 February 1848 - 1 February 1850 and 4 February 1850 – 1 March 1851.
 Vasconcelos was close friend of Honduran general Francisco Morazán.
 He tried to invade Guatemala and defeat general Rafael Carrera on 2 February 1851 but he was defeated.
 After defeat, he retired from public life.
The United Kingdom Census of 1851 recorded the people residing in every household on the night of 30 March 1851, and was the second of the UK censuses to include details of household members.
 However, this census added considerably to the fields recorded in the earlier 1841 census, providing additional details of ages, relationships and origins, making the 1851 census a rich source of information for both demographers and genealogists.
Luigi Piazza (1884 – 22 March 1967), was an Italian operatic baritone, particularly associated with the Italian repertory, especially the role of Rigoletto.
Ali-paša Rizvanbegović-Stočević (1783 – 20 March 1851) Turkish: Ali Rıdvanoğlu Paşa, was a Herzegovinian Ottoman captain (administrator) of Stolac from 1813 to 1833 and the semi-independent ruler (vizier) of the Herzegovina Eyalet from 1833 to 1851.
Philip Charles Shelley Sidney, 1st Baron De L'Isle and Dudley GCH (11 March 1800 – 4 March 1851) was a British Tory politician.
Rigoletto (] ) is an opera in three acts by Giuseppe Verdi.
 The Italian libretto was written by Francesco Maria Piave based on the play "Le roi s'amuse" by Victor Hugo.
 Despite serious initial problems with the Austrian censors who had control over northern Italian theatres at the time, the opera had a triumphant premiere at La Fenice in Venice on 11 March 1851.
Friedrich Hermann Traugott Vogt (11 March 1851 in Greifswald – 28 October 1923 in Marburg) was a German philologist.
 He was the son of theologian Karl August Traugott Vogt (1808–1869).

Question: What opera was Luigi Piazza associated with on 11 March 1851?
Answer: Rigoletto