Prince Otto of Windisch-Graetz

[3] In 1891 he entered the Imperial and Royal Cavalry Cadet School in Hranice as a student, completing the curriculum in two years with moderate success.

After two years stationed in Brno, he was appointed captain in 1899[2] and entered the war school, from which he graduated in 1901 with good results.

On the occasion of the marriage on 23 January 1902 in Vienna, the Emperor elevated the groom to the personal rank of Fürst,[2] while at the same time his wife was required to renounce all claims to the throne.

[2][7] After World War I (1914–1918) Otto became a Yugoslav citizen and lived on lands near Bled (in present-day Slovenia) which he had acquired from the King of Yugoslavia.

He spent World War II with his sister, Countess Eleonore Marie Gabriele Georgine Amalie von Paar (1877-1977), at her palace in Bohemia.