Albrecht, Duke of Bavaria
Albrecht, Duke of Bavaria (Albrecht Luitpold Ferdinand Michael; 3 May 1905 – 8 July 1996) was the son of the last crown prince of Bavaria, Rupprecht, and his first wife, Duchess Marie Gabrielle in Bavaria.
He was the only child from that marriage that reached adulthood.
His paternal grandfather was Ludwig III of Bavaria, the last king of Bavaria, who was deposed in 1918.
Sigismund, Duke of Bavaria
Sigismund of Bavaria (26 July 1439 – 1 February 1501) was a member of the Wittelsbach dynasty.
He ruled as Duke of Bavaria-Munich from 1460 to 1467, and then as Duke of Bavaria-Dachau until his death.
Albert III, Duke of Bavaria
Albert III the Pious of Bavaria- Munich( 27 March 1401 – 29 February 1460), since 1438 Duke of Bavaria- Munich.
He was born in Wolfratshausen to Ernest, Duke of Bavaria and Elisabetta Visconti, daughter of Bernabò Visconti.
Countess Maria Draskovich of Trakostjan
Countess Maria Draskovich von Trakostjan( 8 March 190410 June 1969) was the first wife of Albrecht, Duke of Bavaria, head of the House of Wittelsbach and claimant to the abolished throne of the Kingdom of Bavaria from 1955 to 1969, as well as the Jacobite pretender to the English throne.
For Wittelsbach loyalists, she was the rightful Queen Consort of Bavaria from 1955 until her death, and for Jacobites, she was also the rightful Queen Consort of England, Scotland, Ireland and France during the same period.
Rupprecht, Crown Prince of Bavaria
Rupprecht, Crown Prince of Bavaria, Duke of Bavaria, Franconia and in Swabia, Count Palatine by (the) Rhine ("Rupprecht Maria Luitpold Ferdinand";
English: "Robert Maria Leopold Ferdinand"; 18 May 1869 – 2 August 1955) was the last heir apparent to the Bavarian throne.
During the first half of the First World War he commanded the 6th Army on the Western Front.
From August 1916, he commanded Army Group Rupprecht of Bavaria, which occupied the sector of the front opposite the British Expeditionary Force.
Princess Irmingard of Bavaria
Princess Irmingard of Bavaria( 29 May 1923 – 23 October 2010) was the daughter of Rupprecht, Crown Prince of Bavaria and his second wife, Princess Antonia of Luxembourg.
She was a half- sister of Albrecht, Duke of Bavaria.
Philipp Albrecht, Duke of Württemberg
Philipp Albrecht, Duke of Württemberg(" George Philipp Albrecht Carl Maria Joseph Ludwig Hubertus Stanislaus Leopold Herzog von Württemberg", 14 November 1893 – 17 April 1975) was the son of Albrecht, Duke of Württemberg, and Archduchess Margarete Sophie of Austria.
He was born in Stuttgart, and became head of the formerly reigning royal House of Württemberg on the death of his father in 1939.
He died in Ravensburg, aged 81.
Prince Max, Duke in Bavaria
Max- Emanuel Ludwig Maria Herzog in Bayern( sometimes styled Prince Max of Bavaria, Duke in Bavaria; born 21 January 1937) as the younger son of Albrecht, Duke of Bavaria, is the heir presumptive to both the headship of the former Bavarian royal house and the Jacobite succession.
He was born a Prince of Bavaria, as a member of the royal line of the House of Wittelsbach, but has been using the title" Herzog in Bayern" or Duke in Bavaria, since he was adopted as an adult by his great- uncle, Duke Ludwig Wilhelm in Bavaria, the last bearer of that title of a junior branch of the House of Wittelsbach, from whom he inherited considerable estates at Tegernsee Abbey( including a brewery), Banz Abbey and Kreuth.
Countess Marie-Jenke Keglevich of Buzin
Countess Marie- Jenke Keglevich of Buzin( 23 April 19215 October 1983) was the second wife of Albrecht, Duke of Bavaria, head of the House of Wittelsbach and pretender to the Kingdom of Bavaria from 1955 to 1996 as well as Jacobite pretender to the thrones of England, Scotland, Ireland, and France.
Wittelsbach loyalists hold that she was the rightful Queen Consort of Bavaria from 1971- 83.
Jacobites consider her the rightful Queen Consort of England, Scotland, Ireland, and France during the same period.
Princess Maria Eleonore of Hesse-Rotenburg
Princess and Landgravine Maria Eleonore of Hesse-Rotenburg
(Maria Eleonore Amalia; 25 February 1675 – 27 January 1720) was Landgravine of Hesse-Rotenburg by birth and was the Countess Palatine of Sulzbach by marriage.
She is an ancestor of Albrecht, Duke of Bavaria.

Question: When did Albrecht, Duke Of Bavaria's father die?
Answer: 2 August 1955