Krsto Ungnad or Kristóf Ungnád was a baron and Croatian ban, whose father was named Ivan.
In 1557 Ungnad, as a captain in the Croatian army, defeated the Turks in Koprivnica.
Before becoming ban he was mayor of Varaà ¾din. He assumed the role of ban in 1578. During his reign he is known to have settled a land dispute in Turopolje. He also lost territory to Ottoman Bosnia and the Croatian border was pushed north from the river Una to the Kupa.
Ungnad was a proponent of the Protestant Reformation and it saw some gains in Croatia during his rule.
He married Anna Loszony
Anna who married Toma Erdödy.
He plays a large role in August à  enoaâÂÂs peak work Zlatarevo zlato.