Maria Anna of Savoy
Maria Anna of Savoy( 19 September 1803 – 4 May 1884) was Empress of Austria and Queen of Hungary( see Grand title of the Empress of Austria) by marriage to Emperor Ferdinand I of Austria.
Princess Henriette of Belgium
Princess Henriette of Belgium, later Princess Henriette of Orléans, Duchess of Vendôme( 30 November 1870 – 28 March 1948), was the daughter of Prince Philippe, Count of Flanders, and Princess Marie of Hohenzollern- Sigmaringen.
She was the younger twin sister of Princess Joséphine Marie of Belgium, who died at the age of six weeks in 1871.
Archduchess Elisabeth Marie of Austria
Archduchess Elisabeth Marie of Austria (Elisabeth Marie Henriette Stephanie Gisela; 2 September 1883 – 16 March 1963) was the only child of Rudolf, Crown Prince of Austria and Princess Stéphanie of Belgium, and a granddaughter of Emperor Franz Joseph I of Austria and King Leopold II of the Belgians.
She was known to the family as "Erzsi", a diminutive of her name in Hungarian.
Later nicknamed "The Red Archduchess", she was famous for becoming a socialist and a member of the Austrian Social Democratic Party.
Leopold II of Belgium
Leopold II (9 April 183517 December 1909) was King of the Belgians from 1865 to 1909.
Born in Brussels as the second but eldest surviving son of Leopold I and Louise of Orléans, he succeeded his father to the Belgian throne in 1865 and reigned for 44 years until his death – the longest reign of any Belgian monarch.
He died without surviving sons.
The current Belgian king descends from his nephew and successor, Albert I.
Leopold was the founder and sole owner of the Congo Free State, a private project undertaken on his own behalf.
He used Henry Morton Stanley to help him lay claim to the Congo, the present-day Democratic Republic of the Congo.
At the Berlin Conference of 1884–1885, the colonial nations of Europe authorized his claim by committing the Congo Free State to improving the lives of the native inhabitants.
Leopold ignored these conditions and ran the Congo using the mercenary Force Publique for his personal gain.
He extracted a fortune from the territory, initially by the collection of ivory, and after a rise in the price of rubber in the 1890s, by forced labour from the native population to harvest and process rubber.
He used great sums of the money from this exploitation for public and private construction projects in Belgium during this period.
He donated the private buildings to the state before his death, to preserve them for Belgium.
Leopold's administration of the Congo was characterised by murder, torture, and atrocities, resulting from notorious systematic brutality.
The hands of men, women, and children were amputated when the quota of rubber was not met.
These and other facts were established at the time by eyewitness testimony and on-site inspection by an international Commission of Inquiry (1904).
Millions of the Congolese people died: modern estimates range from 1 million to 15 million deaths, with a consensus growing around 10 million.
Some historians argue against this figure, citing the absence of reliable censuses, the enormous mortality of diseases such as smallpox or sleeping sickness, and the fact that there were only 175 administrative agents in charge of rubber exploitation.
In 1908, the reports of deaths and abuse induced the Belgian government to take over the administration of the Congo from Leopold.
Princess Louise of Belgium
Princess Louise Marie Amélie of Belgium( 18 February 1858 in Brussels – 1 March 1924 in Wiesbaden) was the eldest daughter of Leopold II and his wife, Marie Henriette of Austria.
Archduchess Margaret of Austria (nun)
Margaret of Austria( 1536 – 1567) was an Archduchess of Austria.
Ida of Formbach-Ratelnberg
Ida of Austria (1055 – September 1101) was a Margravine of Austria by marriage to Leopold II of Austria.
She was a crusader, participating in the Crusade of 1101 with her own army.
Marie Henriette of Austria
Marie Henriette of Austria (Marie Henriette Anne; 23 August 1836 – 19 September 1902) was Queen of the Belgians as the wife of King Leopold II.
Marie Henriette was one of five children from the marriage of Archduke Joseph, Palatine of Hungary, and Duchess Maria Dorothea of Württemberg.
Marie Henriette was a cousin of Emperor Ferdinand I of Austria, and granddaughter of Leopold II, Holy Roman Emperor, through her father.
Archduke Otto of Austria (1865–1906)
Archduke Otto Franz Joseph Karl Ludwig Maria of Austria (21 April 1865 – 1 November 1906) was the second son of Archduke Karl Ludwig of Austria (younger brother of Emperor Franz Joseph I of Austria) and his second wife, Princess Maria Annunciata of Bourbon-Two Sicilies.
He was the father of Charles I of Austria, the last Emperor of Austria.
Prince Leopold, Duke of Brabant
Prince Leopold of Belgium, Duke of Brabant, Count of Hainaut( 12 June 1859 – 22 January 1869), was the second child and only son of King Leopold II of Belgium and his wife, Marie Henriette of Austria, and heir apparent to the Belgian throne.

Question: Which country Marie Henriette Of Austria's husband is from?
Answer: Belgian