Prince Emanuele Filiberto, Duke of Aosta
Prince Emanuele Filiberto, 2nd Duke of Aosta (Spanish: "Manuel Filiberto"; 13 January 1869 – 4 July 1931) was an Italian general and member of the House of Savoy, as the son of Amadeo I, and was also a cousin of Victor Emmanuel III of Italy.
Filiberto was also commander of the Italian Third Army during World War I, which earned him the title of the "Undefeated Duke".
After the war he became a Marshal of Italy.
Prince Amedeo, Duke of Aosta
Prince Amedeo, 3rd Duke of Aosta( Amedeo Umberto Isabella Luigi Filippo
Maria Giuseppe Giovanni di Savoia- Aosta; 21 October 1898 – 3 March 1942) was the third Duke of Aosta and a first cousin, once removed of the King of Italy, Victor Emmanuel III.
During World War II, he was the Italian Viceroy of Italian East Africa(" Africa Orientale Italiana", or AOI).
Princess Olga, Duchess of Apulia
Princess Olga, Duchess of Apulia(" née": Princess Olga Isabelle of Greece,; born 17 November 1971) is the daughter of author Prince Michael of Greece and Denmark and his wife, Marina Karella, an artist and daughter of the Greek business magnate Theodore Karella.
Princess Olga is the wife of Prince Aimone of Savoy- Aosta, Duke of Aosta.
Prince Aimone, Duke of Aosta
Prince Aimone, 4th Duke of Aosta ("Aimone Roberto Margherita Maria Giuseppe Torino"; 9 March 1900 – 29 January 1948) was a prince of Italy's reigning House of Savoy and an officer of the Royal Italian Navy.
The second son of Prince Emanuele Filiberto, Duke of Aosta he was granted the title Duke of Spoleto on 22 September 1904.
He inherited the title Duke of Aosta on 3 March 1942 following the death of his brother Prince Amedeo, in a British prisoner of war camp in Nairobi.
From 18 May 1941 to 31 July 1943 he was designated king of the Independent State of Croatia
(NDH) though he never ruled there.
He formally accepted the position and took the name Tomislav II , after the first Croatian king.
Later however he refused to assume the kingship in protest at the Italian annexation of the Dalmatia region, and is therefore referred to in some sources as king designate.
Regardless, many sources refer to him as Tomislav II King of Croatia and the nominal head of the NDH during its first two years (1941–1943).
After the dismissal of Mussolini on 25 July 1943, the prince abdicated on 31 July as king on the orders of Victor Emmanuel III.
Franco Lovignana
Franco Lovignana( born November 22, 1957) is the bishop of the Roman Catholic Diocese of Aosta.
He is the first native- bishop of Aosta since 1968.
Maria Letizia Bonaparte, Duchess of Aosta
Maria Letizia Bonaparte (Marie Laetitia Eugénie Catherine Adélaïde; 20 November 1866 – 25 October 1926) was one of three children born to Prince Napoléon and his wife Princess Maria Clotilde of Savoy.
In 1888 she married Prince Amadeo, Duke of Aosta, the former king of Spain and her uncle.
Maria Letizia became the Duchess of Aosta, Duke of Aosta being a title by which Amadeus was known before and after his kingship.
Their marriage was instrumental in almost reviving French hopes of reinstating the Bonaparte dynasty into a position of power, as seen in the days of Napoleon III.
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.
Princess Claude of Orléans
Princess Claude of Orléans( Claude Marie Agnès Catherine; born 11 December 1943) is a French princess of the House of Orléans.
She is the former wife of Prince Amedeo, Duke of Aosta, a disputed head of the House of Savoy.
Gratus of Aosta
Saint Gratus of Aosta( d. September 7, c. AD 470) was a bishop of Aosta and is the city's patron saint.
Prince Aimone, Duke of Apulia
Prince Aimone of Savoy- Aosta, Duke of Aosta( Aimone Umberto Emanuele Filiberto Luigi Amedeo Elena Maria Fiorenzo di Savoia- Aosta; born 13 October 1967) is the second child and first son of Prince Amedeo, 5th Duke of Aosta, one of the two claimants to the former throne of Italy.
In 2006, his father declared himself Duke of Savoy and head of the House of Savoy; since then Prince Aimone has styled himself Duke of Aosta.
However, because the headship of the royal house is disputed between his father and Vittorio Emanuele, Prince of Naples, he is still referred to as" Duke of Apulia".

Question: What is the date of death of Prince Aimone, Duke Of Aosta's father?
Answer: 4 July 1931