Ferdinand I of Bulgaria

Ferdinand (26 February 1861 – 10 September 1948), born Ferdinand Maximilian Karl Leopold Maria of Saxe-Coburg and Gotha-Koháry, was the ruler of Bulgaria from 1887 to 1918, first as knyaz (prince regnant, 1887–1908) and later as tsar (1908–1918). He was also an author, botanist, entomologist and philatelist. Ferdinand was born in Vienna, a prince of the Koháry branch of the ducal family of Saxe-Coburg-Gotha. He grew up in the cosmopolitan environment of Austro-Hungarian high nobility and also in their ancestral lands in Slovakia and in Germany. The Koháry descended from an immensely wealthy Upper Hungarian (now Slovakian) noble family, who held the princely lands of Čabraď and Sitno in Slovakia, among others. The family's property was...