Princess Wilhelmine of Baden
Princess Wilhelmine of Baden( 21 September 1788 – 27 January 1836), was by birth Princess of Baden and by marriage Grand Duchess consort of Hesse and the Rhine.
She was the youngest daughter of Charles Louis, Hereditary Prince of Baden and Amalie of Hesse- Darmstadt.
Prince Ernest Augustus of Hanover (1914–1987)
Ernst August, Hereditary Prince of Brunswick, Prince of Hanover( 18 March 1914 – 9 December 1987) was head of the House of Hanover from 1953 until his death.
From his birth until the German Revolution of 1918 – 1919 he was the" Erbprinz"( Hereditary Prince) of the Duchy of Brunswick, a state of the German Empire.
He was born at Braunschweig, Germany, the eldest son of Ernest Augustus, Duke of Brunswick and Princess Viktoria Luise of Prussia, the only daughter of Emperor Wilhelm II, Ernest Augustus's third cousin in descent from George III of the United Kingdom.
Ernst August's parents were, therefore, third cousins, once removed.
From his birth, he was the" Hereditary Prince of Brunswick".
He was also, shortly after birth in 1914, made a British prince by King George V of the United Kingdom, and was heir to the titles Duke of Cumberland and Teviotdale and Earl of Armagh which were suspended under the Titles Deprivation Act 1917.
Frederick, Hereditary Prince of Baden-Durlach
Frederick, Hereditary Prince of Baden-Durlach (7 October 1703 – 26 March 1732) was a German hereditary prince of the Margraviate of Baden-Durlach.
Frederick was the son of Charles III William, Margrave of Baden-Durlach, and Magdalena Wilhelmine of Württemberg (7 November 1677 - 30 October 1742), the daughter of William Louis, Duke of Württemberg.
He became heir apparent when his elder brother Charles Magnus died in 1712.
However, he died before his father did and therefore never came to government in Durlach.
He served in the imperial army.
In 1724, he was appointed colonel, in 1728, he was promoted to major general.
Valerie, Margravine of Baden
Archduchess Valerie of Austria (born 23 May 1941 in Vienna, Ostmark, Germany) is a member of the Tuscan line of the House of Habsburg and an Archduchess of Austria and a Princess of Tuscany by birth.
Through her marriage to Maximilian, Margrave of Baden, Valerie is a member of the House of Zähringen and Margravine consort of Baden.
Bernhard, Hereditary Prince of Baden
Bernhard, Hereditary Prince of Baden ("Bernhard Max Friedrich August Gustav Ludwig Kraft"; born 27 May 1970 in Schloss Salem, Salem, Baden-Württemberg, Germany) is a German nobleman and heir to the head of the House of Baden.
He is a great-nephew of Prince Philip, Duke of Edinburgh.
He is the eldest son of Maximilian, Margrave of Baden and Archduchess Valerie of Austria.
A commercial lawyer by training, he studied business administration and law in Hamburg and Switzerland.
Prince Bernhard manages the family estates including Staufenberg Castle and the margravine wineries dedicated to preserving the grape variety Müller-Thurgau.
In the years 2000-2009 he oversaw the transfer of many family assets, including Eberstein Castle and parts of Schloss Salem to the German state in order to stabilise the family's finances.
Carol Victor, Hereditary Prince of Albania
Carol Victor, Hereditary Prince of Albania( Karl Viktor Wilhelm Friedrich Ernst Günther von Wied, 19 May 19138 December 1973) was the only son of William, Prince of Albania and briefly heir to the Principality of Albania.
He held the title of" Hereditary Prince of Albania".
He was also styled Skënder, in homage to Skanderbeg, the national hero.
Princess Amalie of Hesse-Darmstadt
Princess Amalie of Hesse- Darmstadt( 20 June 1754 – 21 June 1832) was a Hereditary Princess of Baden by marriage to Charles Louis, Hereditary Prince of Baden.
She was the daughter of Ludwig IX, Landgrave of Hesse- Darmstadt and Henriette Karoline of Palatine- Zweibrücken.
Peter, Hereditary Prince of Yugoslavia
Peter, Hereditary Prince of Yugoslavia( born 5 February 1980), also known as Peter III Karađorđević(/" Petar III Karađorđević"), is the eldest son of Alexander, Crown Prince of Yugoslavia, and Princess Maria da Gloria of Orléans- Braganza.
Prince Peter is the grandson of King Peter II.
Peter, Hereditary Prince of Yugoslavia' is second in line after his father HRH Crown Prince Alexander to the defunct throne.
Princess Amalia of Nassau-Dietz
Princess Amalia of Nassau- Dietz( Anna Charlotte Amalie; – 18 September 1777) was the wife of Frederick, Hereditary Prince of Baden- Durlach, and mother of Charles Frederick, the first Grand Duke of Baden.
Charles Louis, Hereditary Prince of Baden
Charles Louis, Hereditary Prince of Baden( 14 February 1755 – 16 December 1801) was heir apparent of the Margraviate of Baden.

Question: When is Bernhard, Hereditary Prince Of Baden's mother's birthday?
Answer: 23 May 1941