Twins separated at birth have married each other without realizing they were brother and sister, it has been revealed.
The British couple's marriage has now been annulled by the High Court after judges ruled the marriage had never validly existed.
The identities of the brother and sister and details of how they fell in love and married are being kept secret. Soon after they were born they were separated and adopted by different families.
Neither was told they had a twin and had no idea they were blood relatives until after their wedding.
Professor Lord Alton uncovered the case when a High Court judge told him of a hearing he had dealt with.