His title was khagan , or `` Khan of Khans '' , but has often been abbreviated to Khan ( rather like the Persian Shahanshah - also meaning `` King of Kings '' - is usually called Shah , equally incorrect , in most Western languages ) or described as `` Great Khan '' ( like the Ottoman Padishah being called `` Great Sultan '' ) .
His title was khagan ` Khan of Khans ' , see below , but is often ` shortened ' to Khan ( rather like the Persian Shahanshah - also meaning ` King of Kings ' - is usually called Shah , equally incorrect , in most Western languages ) or described as ` Great Khan ' ( like the Ottoman Padishah being called ` Great Sultan ' ) .