Imagine you have a very special shield full of pictures and symbols that represent your family and where you come from. Just like that, the heraldry of León is kind of like a big, fancy shield that represents the history and identity of a city in Spain called León.
The heraldry of León has a big, gold lion on it. Lions are fierce and strong animals, and in the Middle Ages, people thought that having a lion on their shield would make them look more powerful and important. That's why León decided to use a lion as its symbol.
But the lion is not the only thing on the heraldry of León. There are other symbols too, like a castle and some fleur-de-lis (which are kind of like pretty flowers). These symbols tell a story about the history of the city and the people who lived there. For example, the castle might represent a fortress that protected the city a long time ago, and the fleur-de-lis might represent the noble families who lived there.
So when you look at the heraldry of León, you can see all these different symbols that tell a story about the past of this city in Spain. It's kind of like a picture book all about León's history!