an emperor
a ruler is called "Fürst"
Austria elects a President.
the president of Austria is Alfred Gusenbauer.
Joseph II
Germany and Austria
Charles I was the ruler of Austria from 1916-1918. Francis Joseph I was the ruler prior but died midway into the war.
The ruler of Austria
Franz Joseph I was the ruler of Austria-Hungary durning World War I.
an Austrian is to Austria as an American is to America.
a single ruler
a ruler is called 'une règle' (fem.) in French
u call them centimeters.