Not all expensive celebrity weddings end happily ever after. Oftentimes these high-profile couples divorce and the cost is staggering.

And as they became men, both were burned by various stories: William when the Sun broke the Press's agreement to not follow ...

They were once known for being inseparable, but the Princess of Wales and her sister have reportedly fallen out.

The once-close Kate Middleton and Pippa Middleton have grown apart due to busy schedules and demanding royal commitments.

Catherine, Princess of Wales, and her younger sister Pippa Matthews, once famously close, are reportedly facing growing ...