New York City Speaker Christine Quinn will marry her longtime partner on May 19, the New York Post reported.

Quinn's office announced on Tuesday that Quinn and her partner of 10 years, lawyer Kim Catullo, have decided on a date, but provided virtually no other details.

The 45-year-old Quinn put “save the date” cards in the mail on Monday.

Quinn's office said they wanted to announce the wedding date before guests received their invitations.

The couple will marry in a private ceremony held in Manhattan “with family and friends,” staffers told the paper. New York legalized gay marriage last year.

New York City Mayor Michael Bloomberg is on the invite list.

According to The New York Times, Bloomberg, a strong supporter of marriage equality, has privately backed Quinn for mayor in 2013.

Bloomberg “has told almost everyone who asks – but only privately, so far – that he hopes … Quinn will succeed him,” Manhattan's largest daily wrote.

If elected, Quinn would become the city's first openly gay mayor. And the first legally married, openly gay politician to lead a major U.S. city.