Battle of Kosovo
In his works he also mentions the Battle of Kosovo because he makes a parallel between the conduct of Stefan Lazarević during the Battle of Angora and his father Prince Lazar of Serbia during the Battle of Kosovo. Like many other early Western sources, Mignanelli believed that the Christian Serbian army was victorious. In his 1416 work Mignanelli asserted that the Ottoman sultan Murad I was killed by Prince Lazar himself.