Edie Windsor, the woman whose victory at the Supreme Court paved the way for equal marriage rights for gay and lesbian couples, has remarried.

Windsor, 87, and Judith Kasen, 51, exchanged vows on Monday at City Hall in New York, according to The New York Times.

Windsor met her first wife, Thea Spyer, in the 1960s. Spyer died in 2009, two years after the women married in Canada. Windsor challenged the Defense of Marriage Act (DOMA), which prohibited the federal government from recognizing the couple's marriage, after she received a $363,000 estate tax bill following Spyer's death.

The 2013 Supreme Court ruling that struck down a key provision of DOMA is also credited with providing the legal framework for last year's landmark ruling in Obergefell.

A “romance blossomed” between the women after Kasen took Windsor out on a date, the Times reported. Their first date was a Hanukkah party hosted by Roberta Kaplan, Windsor's lawyer.

“I'm so glad that I could play a part (albeit a small one) in Edie finding love and happiness once again,” Kaplan told NBC Out in an email.

Jim Obergefell, the lead plaintiff in Obergefell, congratulated the couple in a tweet.