Prince Harry’s new girlfriend Meghan Markle would not fit in with the Royal family because of her behaviour, her half-sister has claimed.

The actress, best known for her role in US legal drama Suits, is allegedly driven by “social climbing” and wants to “become a princess”, Samantha Grant, 51, said.

Her desires have allegedly led to the 35-year-old failing to contact her family as often as her half-sister would like, The Sun reported.