I was watching Robbin Hood: Men in Tights, and Richard the Lionheart comes on screen and I got curious how an animal from another continent came to symbolize things like royalty, courage, and other virtues in Heraldry?
This is a topic that has come up often before, and a basic answer is the lion's presence in Greco-Roman literature and its prominence in the Bible. There are some good previous answers by users on this subreddit:
I hope this was helpful!