Ivan Asen(redirected from John Asen)
Ivan Asen:see Ivan IIIvan II
or Ivan Asen
, d. 1241, czar of Bulgaria (1218–41). On the death (1207) of his father, Kaloyan, founder of the second Bulgarian empire, the throne was usurped by Ivan's cousin Boril.
..... Click the link for more information. , czar of Bulgaria.