gustavliersch

Impressive uniform and a nice horse.

Crown Prince William of Germany was appointed colonel-in-chief of the English 11th Hussars in 1911. See www.nam.ac.uk/research/famous-units/11th-hussars-prince-a...

There had been an earlier 1st Hussars regiment in the King's German Legion of the British Army during the Napoleonic War, but I haven't found a 1st Hussars. Perhaps the postcard caption has a typo.

www.hussards-photos.com/UK/UK_11_CPA_Kronprinz.htm
shows this picture under the title "11th (Prince Albert's Own) Hussars" and has a note, "The postcard wrongly states that he's in the uniform of the "1st Hussars". "

he looks like Prince Charles. And Queen Elizabeth.

"German Field-Marshall Paul von Hindenburg gathered with his family on the occasion of his 70th birthday in 1917. Left to right: Hindenburg's son in law Christian von Pentz, Annemarie [Barbara Ilse Ursula Margarete Eleonore] von Pentz (neé Hindenburg), Mrs. von Hindenburg, Hindenburg, "Irmengard [Pauline Louise Gertrud] von Brockhusen (neé Hindenburg)."
de.wikipedia.org/wiki/Paul_von_Hindenburg#/media/File:Hin...
see also de.wikipedia.org/wiki/Paul_von_Hindenburg#Familie :
" From this marriage the children Irmengard Pauline Louise Gertrud (1880-1948), Oskar (1883-1960) and Annemarie Barbara Ilse Ursula Margarete Eleonore (1891-1978) emerged. The older daughter married in 1902 Hans Joachim von Brockhusen (1869-1928), the younger 1912 Christian von Pentz (1882-1952) and the son 1921 Margaret of Marenholtz(1897-1988).

"Paul Ludwig Hans Anton von Beneckendorff und von Hindenburg, known universally as Paul von Hindenburg; 2 October 1847 – 2 August 1934) was a Prussian-German field marshal, statesman, and politician, and served as the second President of Germany from 1925 to 1934.
Hindenburg enjoyed a long career in the Prussian Army, retiring in 1911. He was recalled at the outbreak of World War I, and first came to national attention, at the age of 66, as the victor at Tannenberg in 1914. As Germany's Chief of the General Staff from 1916, he and his deputy, Erich Ludendorff, rose in the German public's esteem until Hindenburg gradually gained more influence in Germany than the Kaiser himself."
en.wikipedia.org/wiki/Paul_von_Hindenburg
"Gertrud Wilhelmine von Beneckendorff und von Hindenburg (born December 4, 1860 in Magdeburg, † May 14, 1921 in Hannover) was a German noblewoman and philanthropist. She was the wife of Paul von Hindenburg, the Chief of the German Army Command in the second half of the First World War and President of Germany."
en.wikipedia.org/wiki/Gertrud_von_Hindenburg

commons.wikimedia.org/wiki/File:Hindenburgfamily0001.jpg is another URL for the same picture. Anne Marie and Christian had four children. See de.wikipedia.org/wiki/Christian_von_Pentz_(Offizier). Irmengard and Hans-Joachim Adalbert Gotthilf von Brockhusen had three sons. See www.geni.com/people/Hans-Joachim-von-Brockhusen/600000000...

Art Siegel Thank you for locating the photograph from which this negative was copied identifying those present.

"Paul Ludwig Hans Anton von Beneckendorff und von Hindenburg (About this sound listen (help·info)), known universally as Paul von Hindenburg (German: [ˈpaʊl fɔn ˈhɪndn̩bʊɐ̯k] ( listen); 2 October 1847 – 2 August 1934) was a German military officer, statesman, and politician who served as the second President of Germany during the period 1925-1934.

Hindenburg retired from the army for the first time in 1911, but was recalled shortly after the outbreak of World War I in 1914. He first came to national attention at the age of 66 as the victor of the decisive Battle of Tannenberg in August 1914. As Germany's Chief of the General Staff from August 1916, Hindenburg's reputation rose greatly in German public esteem. He and his deputy Erich Ludendorff would then lead Germany in a de facto military dictatorship throughout the remainder of the war, marginalizing German Emperor Wilhelm II as well as the German Reichstag. In line with Lebensraum ideology, he advocated sweeping annexations of territory in Poland, Ukraine and Russia in order to re-settle Germans there."
en.wikipedia.org/wiki/Paul_von_Hindenburg

see

Original photo is by A. Grohs.