Pippa Middleton's newspaper column canceled after 6 months

LONDON, May 12 (UPI) -- The Daily Telegraph has canceled a lifestyle column penned by Pippa Middleton, the sister-in-law of Britain's Prince William.

Middleton began writing her "Sport and Social" column last September, but her contract has not been renewed.

"The readers just weren't into it. There was a lot of negative mail coming in after each column and there were too many off-limit subjects for her. They ran out of ideas," a Telegraph source told Us Magazine.

Middleton remains a contributor to Waitrose Kitchen and Vanity Fair magazines, however.

Her sister, Kate, married Prince William in 2011.