Lady Sarah McCorquodale – Princess Diana’s sister, who also dated Prince Charles – celebrates her 70th birthday

The demise of Sarah and Charles’ romance left no ill feelings, however, and when Charles re-connected with Diana in 1980, Sarah is said to have given her blessing to the match. In fact, when their engagement was announced, she told The Guardian: ‘I introduced them. I’m Cupid.’ She married Neil Edmund McCorquodale that same year, a second cousin once removed of her stepmother, Raine Spencer. Together, they have three children: Emily, George and Celia.

Sarah and Diana remained close for…