Apparently the end of Rooty’s first marriage occurred before he came to NY .....when he met #2 Hanover he was already separated from Wife #1 for around 7 years. Read on:
Reposted from above: Per Wiki: Giuliani married three times. On October 26, 1968, soon after he graduated from law school, he married his second cousin, educator Regina Peruggi, whom Giuliani had known since childhood.
In the mid-70s the marriage was in trouble and in 1975 they agreed to a trial separation.[112] Peruggi did not
accompany him to Washington when he accepted the job in the Attorney General’s Office.[113]
Giuliani met local television personality Donna Hanover sometime in 1982, and they began dating when she was working in Miami.[114] Giuliani filed for legal separation from Peruggi on August 12, 1982.[112] Giuliani and Hanover
started living together later that year in Washington, D.C.[114]
The Giuliani-Peruggi marriage was ended in two ways: a civil divorce was issued by the end of 1982,[115] while a Roman Catholic Church annulment of the Giuliani-Peruggi marriage was granted at the end of 1983[112], according to Giuliani, because he discovered after 14 years of marriage that he and his wife were second cousins,[116] rather than third cousins,[113] and they did not have the Church dispensation thus needed.[117]
Giuliani and Peruggi did not have any children.