From the DC Wiki page for the Pre-Flashpoint Kate Kane page.
The details are different but in fact Kate seems to have come from a very similar place.Jacob Kane eventually married weapons heiress Catherine Hamilton. This new wealth established Kate as a socialite in Gotham City's upper crust. She became notorious for her partying and drinking.One night after a party, she was pulled over by officer Renee Montoya. Instead of being fined for drink driving, the two entered in a relationship. They broke up when Renee told her she had no direction in her life, no education, and no apparent goal.
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