I see that the Margrave of Baden and his brother, I believe was in Great Britain to celebrate the Queen's Birthday. Also were Donatus of Hesse and his wife Flora. Is this the main branch of Hesse? I know there were multiple branches years ago. Also, I read that the Hesse Foundation owns two hotels, a winery and multiple castles. You don't hear much about them. Can anyone provide additional information? I know that they are related to the Berleburgs through their mother, Tatiana.
If I understand your question correct, you would like to have more info about the Hesse family. Well, I am going to give it a try
According to Wikipedia (https://en.wikipedia.org/wiki/House_of_Hesse
- The House of Hesse descends directly of the House of Brabant.
- Philip I, Landgrave of Hesse, died in 1567. Hesse was divided between his four sons, four new lines which arose: Hesse-Darmstadt, Hesse-Kassel, Hesse-Marburg and Hesse-Rheinfels
- Hesse - Kassel (1567-1866), became Electorate of Hesse in 1803
- Hesse-Rotenburg (1627-1834)
- Hesse-Wanfried (1627-1755)
- Hesse-Rheinfels (1627-1754)
- Hesse-Sweden (1720-1751), died out as King Frederik I of Sweden had no legitimate heirs
- Hesse-Philippsthal (1685-1866)
- Hesse-Philippsthal-Barchfeld (1721-1866)
- Hanau-Schaumburg (1831/1853, morganatic line)
- Hesse-Marburg (1567, divided in 1604 between Hesse-Darmstadt and Hesse-Kassel)
- Hesse-Rheinfels (1567, divided in 1583 between Hesse-Darmstadt, Hesse-Kassel and Hesse-Marburg)
- Hesse - Darmstadt (1567-1918), became Grand Duchy of Hesse in 1806
- Hesse-Butzbach (1609-1642)
- Hesse-Braubach (1609-1651)
- Hesse-Homburg (1622-1866)
- Hesse-Itter (1661-1676)
- Battenberg (1858, morganatic line. Is named Mountbatten since 1917)
In the early 19th century the Landgrave of Hesse-Kassel was elevated to Elector of Hesse (1803), while the Landgrave of Hesse-Darmstadt became the Grand Duke of Hesse (1806), later Grand Duke of Hesse and by Rhine. Hesse-Kassel and its junior lines were annexed by Prussia in 1866. Hesse-Darmstadt became the People's State of Hesse when the monarchy was abolished in 1918. Hesse-Philippsthal died out in the male line in 1925, Hesse-Darmstadt in 1968. The male-line heirs of Hesse-Kassel and Hesse-Philippsthal-Barchfeld flourish.
Donatus, Landgrave of Hesse (17 October 1966) is the current (2012) head of the house. He is the eldest son and successor of German aristocrat Moritz, Landgrave of Hesse, and his former wife, Princess Tatiana of Sayn-Wittgenstein-Berleburg. Donatus originates from the Hesse-Kassel line.
Moritz, Landgrave of Hesse (1926-2013) was the son of Prince Philip, Landgrave of Hesse and Princess Mafalda of Savoy (daughter of King Victor Emmanuel III of Italy and his wife Elena of Montenegro). During the Second World War, Mafalda was arrested by the Nazi for alleged subversive activities and died in the concentration camp of Buchenwald in 1944.
Philip, Landgrave of Hesse (1869 - 1980) the third son of Prince Frederick Charles of Hesse and of his wife Princess Margaret of Prussia (sister of Emperor Wilhelm II). In October 1918, Philipp's father was elected king of Finland. It was intended that Philipp would eventually succeed his father as Head of the House of Hesse, while his (younger) twin brother Wolfgang would be heir to the Finnish throne. The plans for a Finnish monarchy, however, soon came to an abrupt end with the defeat of Germany; Finland became a republic in July 1919. On 28 May 1940, Philipp succeeded his father as Head of the Electoral House of Hesse. In 1968, upon the death of his distant agnatic relative, Prince Louis of Hesse and by Rhine (who was also his second cousin as Philipp's mother and Louis' father were grandchildren of Queen Victoria), Philipp succeeded to the total headship of the entire House of Hesse, including grand ducal Hesse (Hesse and by Rhine/Hesse-Darmstadt. Louis had nominally adopted Philipp's son Moritz, who at that time inherited the Hessian and by-Rhine properties. Louis was an enthusiastic Nazi, but was apparently something went wrong during WW II.
End 1943 he was arrested and stripped of his Nazi party membership. Philipp was sent to subsequently Flossenburg and Dachau concentration camps. While his wife Mafalda was sent to Buchenwald concentration camp after questioning, where she died.