Archduchess Maria Christina of Austria (1879–1962)
Archduchess" Maria Christina" Isabelle Natalie of Austria, full German name:" Maria Christina Isabelle Natalie, Erzherzogin von Österreich"( 17 November 1879, Kraków, Grand Duchy of Cracow, Austria – Hungary – 6 August 1962, Anholt) was a member of the Teschen branch of the House of Habsburg- Lorraine and an Archduchess of Austria and Princess of Bohemia, Hungary, and Tuscany by birth.
Through her marriage to Emanuel Alfred, Hereditary Prince of Salm- Salm, Maria Christina was also Hereditary Princess of Salm- Salm.
Princess Rosemary of Salm-Salm
Princess Rosemary of Salm-Salm  (13 April 1904, Potsdam, Kingdom of Prussia, Germany – 3 May 2001, Persenbeug Castle, Persenbeug-Gottsdorf, Austria) was a member of the princely House of Salm-Salm.
Through her marriage to Archduke Hubert Salvator of Austria, Rosemary was a member of the of the House of Habsburg-Lorraine.
Hermann of Salm
Herman( n) of Salm( – 28 September 1088), also known as Herman( n) of Luxembourg, the progenitor of the House of Salm, was Count of Salm and elected German anti-king from 1081 until his death.
Archduke Hubert Salvator of Austria
Archduke Hubert Salvator of Austria, Prince of Tuscany (30 April 1894 in Schloss Lichtenegg, Wels, Upper Austria, Austria–Hungary – 24 March 1971 in Schloss Persenbeug, Persenbeug-Gottsdorf, Lower Austria, Austria) was a member of the Tuscan line of the House of Habsburg and Archduke of Austria, Prince of Tuscany by birth.
Franz Nadorp
Franz Johann Heinrich Nadorp, (June 23, 1794 – September 17, 1876) was a German painter who primarily worked and lived in Rome.
Nadorp was born in Isselburg into a family of artists.
He was the only son of Johann Theodor Nadorp and Gertrud Anna Stroof.
After his education at the Anholt City school, he was joined at age 20 by a fellowship of his country gentlemen Prince Constantin of Salm-Salm in the Academy of Fine Arts, Prague, where he trained as a historical painter with his teacher Joseph Bergler.
Nadorp was the favorite pupil of Bergler.
In 1822 he received the gold medal of the Academy.
When in 1826 his mentor died, Nadorp broke his tents from Prague and returned in 1827 for a few months in his hometown district of Anholt in Isselburg.
In the fall of 1827 Nadorp traveled with his companions Prince Franz of Salm-Salm to Rome.
The city of Rome drew at the time many German artists, such as Peter Cornelius, Johann Friedrich Overbeck and Julius Schnorr von Carolsfeld.
Nadorp was quite fast in the group of German artists, called the "Nazarenes".
He was one of the founders of the Roman Künstlerbund (1829) and the German Artists' Union (1845).
The years 1840-1850 are among his most fertile.
Numerous drawings surviving.
During this time, Nadorp met the King Ludwig I of Bavaria, and they both shared a friendship.
1859 Nadorp was received by King Frederick William IV of Prussia, and led to his first government contract.
Nadorp left Rome only rarely in the nearly 50 years of local work.
In 1862 he returned for a short time back in his hometown.
For his baptismal church of St. Pancras, he created an altarpiece "The Presentation of Jesus in the Temple" and drew the located shortly before the demolition of the old town church.
In 1876 Prince Alfred I of Salm-Salm granted him an annuity.
Nadorp, which is considered a romantic German painter in style, died shortly thereafter in Rome and buried at Campo Santo Teutonico next to St. Peter in the Vatican.
His entire estate was transferred to the Princes of Salm -Salm and can still be seen today in the Museum Wasserburg Anholt and in the parish church of St. Pancras.
Felix Salm-Salm
Prince Felix Constantin Alexander Johann Nepomuk of Salm- Salm( 25 December 1828 – 18 August 1870) was a Prussian military officer of princely birth and a soldier of fortune.
Salm- Salm served in the Schleswig- Holstein Army( Prussian Army), Austrian Army, the Union Army during the American Civil War, the army of Emperor Maximilian in Mexico and thereafter in the Prussian Army.
He was killed in action during the Franco- Prussian War.
Princess Isabelle of Salm-Salm
Princess Isabelle of Salm- Salm, full German name:" Isabelle Maria Rosa Katherina Antonia, Prinzessin zu Salm und Salm- Salm"( 13 February 1903, Potsdam, Kingdom of Prussia, Germany – 10 January 2009, Kevelaer, North Rhine- Westphalia, Germany) was a member of the House of Salm- Salm and an Princess of Salm- Salm by birth.
Through her marriage to Felix, Baron of Loë, Isabelle was also Baroness of Loë.
Charles Theodore, Prince of Salm
Charles Theodore Otto, Prince of Salm( 1645- 1710), was Count of Salm- Salm since 1663 and Obersthofmeister at the Austrian Court.
Louis Otto, Prince of Salm
Louis Otto, Prince of Salm( 24 October 1674 – 23 November 1738) was the Count of Salm- Salm from 1710, the only son of the Imperial chamberlain(" Reichskämmerer")
Charles Theodore, Prince of Salm( 1645 – 1710) and Countess Palatine Luise Maria of Simmern( 1647- 1679).
Prince Karl Alfred of Liechtenstein
Prince Karl Alfred of Liechtenstein
(Karl Alfred Maria Johannes Baptista Heinrich Aloys Georg Hartmann Ignatius; 16 August 1910 – 17 November 1985) was a prince and brother of Franz Joseph II.
He was the third child and second son of Prince Aloys of Liechtenstein and Archduchess Elisabeth Amalie of Austria.
He married on 17 February 1949, at Persenbeug Castle in Austria, Archduchess Agnes Christina of Austria (14 December 1928 – 31 August 2007).
She was the second child and eldest daughter of Archduke Hubert Salvator of Austria and Princess Rosemary of Salm-Salm.
They had seven children:
Prince Karl Alfred died on 17 November 1985.

Question: What is the date of birth of Princess Rosemary Of Salm-Salm's husband?
Answer: 30 April 1894