André Masséna
André Masséna, 1st Duke of Rivoli,
1st Prince of Essling (born Andrea Massena; 16 May 1758 – 4 April 1817) was a French military commander during the Revolutionary and Napoleonic Wars.
He was one of the original eighteen Marshals of the Empire created by Napoleon, with the nickname "l'Enfant chéri de la Victoirethe Dear Child of Victory").
Many of Napoleon's generals were trained at the finest French and European military academies, but Masséna was among those who achieved greatness without the benefit of formal education.
While those of noble rank acquired their education and promotions as a matter of privilege, Masséna rose from humble origins to such prominence that Napoleon referred to him as "the greatest name of my military Empire."
His military career is equaled by few commanders in European history.
In addition to his battlefield successes, Masséna's leadership aided the careers of many.
A majority of the French marshals of the time served under his command at some point.
William Graham, 2nd Duke of Montrose
William Graham, 2nd Duke of Montrose( 27 August 1712 – 23 September 1790) was the son of James Graham, 1st Duke of Montrose, and his wife, Christian Carnegie.
He married Lucy Manners, daughter of John Manners, 2nd Duke of Rutland on 28 October 1742.
He died at age 78 at Twickenham, London, England.
Francois Victor Massena, 2nd Duke of Rivoli
François Victor Masséna, 2nd Duke of Rivoli and 3rd Prince of Essling (born 2 April 1799 in Antibes, died 16 April 1863) was an amateur ornithologist.
He was the youngest of four children of André Masséna, 2nd Prince of Essling and Anne Marie Rosalie Lamare.
His siblings were Victoire Thècle Masséna, Marie Anne Elisabeth Masséna and Jacques Prosper Masséna.
Masséna accumulated a large bird collection of 12,500 specimens, which he sold to Dr. Thomas Bellerby Wilson in 1846.
Wilson gave the collection to the Philadelphia Academy of Natural Sciences.
Massena described a number of new parrots with his nephew Charles de Souancé, including the green-cheeked parakeet.
The slaty-tailed trogon, crimson-mantled woodpecker and Rivoli's hummingbird were all named in his honor.https://www.allaboutbirds.org/guide/Rivolis_Hummingbird/overview
In 1823 he married Anna Massena, Duchess of Rivoli
and they had four children.
Anna's hummingbird was named in her honor by René Primevère Lesson.
Louis, duc Decazes
" Louis"- Charles- Élie- Amanien Decazes de Glücksbierg, 2nd Duke Decazes and 2nd Duke of Glücksbierg( 29 May 1819 – 16 September 1886), was a French diplomat and statesman.
Edmond de Talleyrand-Périgord
Edmond de Talleyrand- Périgord, 2nd Duke of Talleyrand, 2nd Duke of Dino( 1 August 1787, Paris – 14 May 1872, Florence), was a French general of the Napoleonic Wars.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
James Douglas, 2nd Duke of Queensberry
James Douglas, 2nd Duke of Queensberry and 1st Duke of Dover( 18 December 16626 July 1711) was a Scottish nobleman.
Charles Lennox, 2nd Duke of Richmond
Charles Lennox, 2nd Duke of Richmond, 2nd Duke of Lennox, 2nd Duke of Aubigny,( 18 May 17018 August 1750) was a British nobleman, peer, and politician.
He was the son of Charles Lennox, 1st Duke of Richmond, an illegitimate son of King Charles II.
He held a number of posts in connection with his high office but is best remembered for his patronage of cricket.
He has been described as the most important of the sport's early patrons and did much to help its evolution from village cricket to first- class cricket.
William Douglas-Hamilton, 12th Duke of Hamilton
William Alexander Louis Stephen Douglas- Hamilton, 12th Duke of Hamilton, 9th Duke of Brandon, 2nd Duke of Châtellerault KT( 12 March 1845 in London – 16 May 1895 in Algiers) was a Scottish nobleman.
James Fitz-James Stuart, 2nd Duke of Berwick
James Francis( Jacobo Francisco) Fitz- James Stuart, 2nd Duke of Berwick, 2nd Duke of Liria and Xérica( Saint- Germain- en- Laye, France, 21 October
1696 – Naples, Italy, 2 June 1738) was a Jacobite and Spanish nobleman.
He inherited titles in the Jacobite and Spanish nobility on the death of his father in battle in 1734 at Philippsburg, during the War of the Polish Succession.
He was also Consort Duke of Veragua and of la Vega and a Consort- Marquis of four further titles by his Spanish marriage in 1716.
His full title was 2nd Duke of Berwick, 2nd Earl of Tinmouth, 2nd Baron Bosworth, 2nd Duke of Liria and Xerica, Grandee of Spain 1st class( from 1716), Knight of the Order of the Golden Fleece( from 29 September 1714), as well as the holder of several earldoms.

Question: When did Francois Victor Massena, 2Nd Duke Of Rivoli's father die?
Answer: 4 April 1817