In the book, Michael is described as an ordinary boy — the opposite of his extraordinary, unique, and self-sufficient little sister. He’s five years older than Matilda and has a thing for peanut butter and jelly sandwiches, which we totally get. (Specifically, he adores strawberry jam.)

“Matilda’s brother Michael was a perfectly normal boy, but the sister, as I said, was something to make your eyes pop. By the age of one and a half her speech was perfect and she knew as many words as most grown-ups,” the book reads.

Source: https://www.distractify.com/p/did-matilda-have-a-brother