Okay, so Catherine of Aragon was a lady who lived a long time ago in a place called England. She was married to a very important man who was called the King. Lots of people knew who she was because she was the Queen of England for a while.
When people talk about cultural depictions of Catherine of Aragon, they mean all the different ways that she has been shown or talked about in movies, TV shows, books, and other things that people make. Some people have drawn pictures of her, some people have written songs or poems about her, and some people have made statues or other artworks that show what she looked like.
Some people think Catherine was a really strong and brave lady who did her best to be a good queen even when things were really hard. Other people believe that she was mean and selfish and not very nice to the people she ruled over. Different people have different opinions about her, so there are lots of different cultural depictions of her.
Some examples of cultural depictions of Catherine of Aragon are the TV show "The Spanish Princess," which tells the story of her life, or the statue of her that you can see in a place called Kimbolton in England. You might also read books or watch movies that talk about her and her husband, the King, or even learn about her in school!