I want to know the answer to the following question:
On what date were the armies under Władysław III defeated by Murad II?
All the background I'm provided with is that "Four years later, John Hunyadi prepared another army (of Hungarian and Wallachian forces) to attack the Turks but was again defeated by Murad II at the Second Battle of Kosovo in 1448.". Is that enough to answer the question?
Answer: no