At 43 years, the reign of this founder of the Russian navy was the longest of any czar
Her reign, which lasted nearly 20 years, is also known for her involvement in 
the... [DOC] [TLE] Ivan the Terrible - Wikipedia [PAR] Ivan IV Vasilyevich commonly known as Ivan the Terrible or Ivan the Fearsome 
was the Grand Prince of Moscow from 1533 to 1547 and 'Tsar of All the Russias' 
from 1547 until his death in 1584.