London: Lady Diana’s sister, Prince Charles had secret affairs with Lady Sarah Spencer, but Sarah refused to get married with Charles. At the time when Prince Charles was facing an increasing pressure to search for his life partner, he met Lady Sarah in 1977, and same year he met Lady Diana.
According to reports Charles and Sarah secretly met each other, Prince Charles went to his Swiss resort, Sarah all along with him, at the resort, at one point Sarah talked to the journalist and Charles did not like this, after which the relationship ended suddenly.
Lady Diana became Prince of Wales after marriage with Prince Charles in 1981, While Lady Sarah married Neil McCorquodale. Prince Charles married Kamila Parker after the death of Lead Di Diana in the Paris Car accident in 1997.