In case it wasn't mentioned here already, Rudy Giuliani was married to his second cousin. He claims to have not known of their familiar relationship. Giuliani married Regina Peruggi, his second cousin, whom he had known since childhood, on October 26, 1968. The marriage was in trouble by the mid-1970s and they agreed to a trial separation in 1975. Peruggi did not accompany him to Washington when he accepted the job in the Attorney General's Office. Giuliani met local television personality Donna Hanover sometime in 1982, and they began dating when she was working in Miami. Giuliani filed for legal separation from Peruggi on August 12, 1982. The Giuliani-Peruggi marriage legally ended in two ways: a civil divorce was issued by the end of 1982, while a Roman Catholic church annulment of the marriage was granted at the end of 1983, reportedly because Giuliani had discovered that he and Peruggi were second cousins. Alan Placa, Giuliani's best man, later became a priest and helped secure the annulment. Giuliani and Peruggi had no children Source: https://en.wikipedia.org/wiki/Rudy_Giuliani