Georg Donatus, Hereditary Grand Duke of Hesse
Prince Georg Donatus, Hereditary Grand Duke of Hesse(" Georg Donatus Wilhelm Nikolaus Eduard Heinrich Karl", 8 November 1906 – 16 November 1937) was the first child of Ernest Louis, Grand Duke of Hesse and his second wife, Princess Eleonore of Solms- Hohensolms- Lich.
He was a nephew of Empress Alexandra, wife of Emperor Nicholas II of Russia.
Princess Louise Amelie of Baden
Princess Louise Amelie Stephanie of Baden( 5 June 1811 – 19 July 1854) was a daughter of Charles, Grand Duke of Baden, and his wife, Stéphanie de Beauharnais.
Charles Frederick, Grand Duke of Baden
Charles Frederick (22 November 1728 – 10 June 1811) was Margrave, Elector and later Grand Duke of Baden (initially only Margrave of Baden-Durlach) from 1738 until his death.
Prince Charles of Hesse and by Rhine
Prince Charles of Hesse and by Rhine (23 April 1809 - 20 March 1877) was the second surviving son of Louis II, Grand Duke of Hesse and Wilhelmine of Baden.
Louis II, Grand Duke of Baden
Louis II, Grand Duke of Baden( 15 August 1824 – 22 January 1858) was the son of Leopold I, Grand Duke of Baden and Sophie of Holstein- Gottorp, Princess of Sweden.
Louis succeeded his father as Grand Duke of Baden on 24 April 1852.
His brother Frederick acted as regent, because Louis suffered from mental illness.
However, in 1856, Frederick became grand duke as well.
He was also an honorary citizen of Karlsruhe.
Louis I, Grand Duke of Baden
Ludwig I (9 February 1763 – 30 March 1830) succeeded as Grand Duke of Baden on 8 December 1818.
He was the uncle of his predecessor Karl Ludwig Friedrich, and his death marked the end of the Zähringen line of the House of Baden.
He was succeeded by his half brother, Leopold.
He secured the continued existence of the University of Freiburg in 1820, after which the University was called the Albert-Ludwig University.
He also founded the Polytechnic Hochschule Karlsruhe in 1825.
The Hochschule is the oldest technical school in Germany.
Ludwig's death in 1830 led to many rumors.
His death also meant the extinction of his line of the Baden family.
The succession then went to the children of the morganatic second marriage of Grand Duke Karl Friedrich and Louise Karoline Geyer von Geyersberg, who was created Countess of Hochberg in the Austrian nobility at the personal request of Karl Friedrich.
After Ludwig's death, there was much discussion about a mysterious seventeen-year-old man named Kaspar Hauser, who had appeared seemingly out of nowhere in 1828.
Seventeen years previously, the first son of the future Grand Duke Karl and his French wife Stéphanie de Beauharnais died under what were later portrayed as mysterious circumstances.
There was at the time and still is today (in 2007) speculation that Hauser, who died (perhaps murdered) in 1833, was that child.
Working together with architect Friedrich Weinbrenner, Louis is responsible for most of the classical revival buildings in the city center and for building the pyramid.
Louis I, Grand Duke of Hesse
Louis I, Grand Duke of Hesse( 14 June 1753 in Prenzlau – 6 April 1830 in Darmstadt) was" Landgrave of Hesse- Darmstadt"( as" Louis X") and later the first" Grand Duke of Hesse and by Rhine".
Stéphanie de Beauharnais
Stéphanie, Grand Duchess of Baden( Stéphanie Louise Adrienne de Beauharnais; August 28, 1789 – January 29, 1860) was a French princess and the Grand Duchess consort of Baden by marriage to Karl, Grand Duke of Baden.
Frederick II, Grand Duke of Baden
Frederick II( 9 July 1857 – 9 August 1928) was the last sovereign Grand Duke of Baden, reigning from 1907 until the abolition of the German monarchies in 1918.
The state of Baden originated from the area of the Grand Duchy.
In 1951- 1952, it became part of the new state of Baden- Württemberg.
Louis II, Grand Duke of Hesse
Louis II( 26 December 1777 – 16 June 1848) was Grand Duke of Hesse and by Rhine from 6 April 1830 until 5 March 1848, resigning during the German Revolution of 1848.
He was the son of Louis I, Grand Duke of Hesse, and Princess Louise of Hesse- Darmstadt.

Question: When did Louis I, Grand Duke Of Baden's father die?
Answer: 10 June 1811