Books about 'naughty' children

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My DC love Horrid Henry, Dennis the Menace and My Naughty Little Sister. Can anyone recommend any other books about 'naughty' children that we might enjoy. They're 7, 8 and 10.

TIA

Astrid Lindgren's Lotta books are lovely. I read them frequently as a girl. I keep meaning to get more copies for my daughters, as I know they'd love them.
I remember reading a book when I was about 10 called The Worst Children in the World, or something along those lines. All I remember is there was a character called Imogen and it was a name I'd never heard of. I'll see if I can find it. They were very naughty children!

Here it is!
www.amazon.co.uk/Worst-Kids-World-Barbara-Robinson/dp/0099427400/ref=sr_1_17?s=books&ie=UTF8&qid=1428443615&sr=1-17&keywords=world%27s+worst+children

The Fudge books by Judy Blume. My kids loved these. Fudge is brilliantly anarchic.

Amelia Jane isn't naughty. The other toys are all really horrid to her!

Tales of a Fourth Grade Nothing and Superfudge by Judy Blume!

First thought was: Marmalade Atkins. My heroine when I was a child.