Boris III of Bulgaria died on 1943-08-28.
King Boris III died on August 28, 1943, in Sofia, Bulgaria.
Boris I of Bulgaria died on 907-05-02.
Boris II of Bulgaria died in 977.
Ivan Asen III of Bulgaria died in 1303.
Tsar Feodor III of Russia died on May 7, 1682 at the age of 20.
Boris Sharlandzhiev died on March 18, 2008, in Sofia, Bulgaria.
Boris Arabow died on April 4, 1984, in Sofia, Bulgaria.
Boris Borozanov died on November 5, 1951, in Sofia, Bulgaria.
Boris Grezhov died on March 3, 1968, in Sofia, Bulgaria.
Tsar Peter III of Russia died on July 6, 1762 at the age of 34.
Smilets of Bulgaria died in 1298.