Ruler of Bulgaria from 1908 to 1918 who notably elevated Bulgaria to the status of a kingdom. He was also an author and botanist.
He grew up in a noble family and was the heir apparent to the throne in 1887.
As ruler of Bulgaria he joined the other Balkan states in an unsuccessful assault on the Ottoman Empire to free occupied territories.
His son Boris III took over upon his abdication following Bulgaria's defeat in WWI and he is a distant relative of German Emperor Wilhelm II.
The artist Christo is another famous Bulgarian.