Here's the only info I found....
"Horrible ---- well, not all of them. My aunt and uncle and cousin are, though. Wish I'd had three wizard brothers."
"Five," said Ron. for some reason he was looking gloomily. "I'm the sixth in our familt to go to Hogwarts. You can say I've got a lot to live to. Bill and Charlie have already left --- Bill was head boy and Charlie was captain of Quidditch. Now Percy's a prefect. Fred and George mess around alot, but they still get really good marks and everyone thinks they're really funny. Everyone expects me to do as well as the others, but if I do, it's no big deal, because they did it first. You never get anything new, either, with five brothers. I've got Bill's old robes, Charlie's old wand,a nd Percy's old rat."
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