So, a long long time ago, way before you were born, there was a city called Kraków in a country called Poland. The people who lived in Kraków wanted to have their own special symbol that represents their city. They called this symbol a "coat of arms".
Now, the people of Kraków wanted their coat of arms to have some special things on it that were important to them. They decided on having a little white eagle with a crown on its head, standing on a red shield. They chose the white eagle because it is a very important animal in Poland and also because it is a symbol of strength and freedom.
The people of Kraków used their coat of arms on lots of things like flags, buildings, and even on their clothes. It became a really important symbol for them and they were very proud of it.
And that, my little friend, is the story of the coat of arms of Kraków!