Kitt Shapiro, the daughter of the singer Eartha Kitt of Weston, Conn., is to be married today to Allan Bruce Rothschild, the son of Rita and Stanley Rothschild of Merrick, N.Y. Rabbi Mark Lipson will officiate at the couple's house in Westport, Conn.

Ms. Shapiro, 40, will keep her name. The bride manages her mother's tours and recording career and is the production manager at Eartha Kitt Productions in New York.

Mr. Rothschild, also 40, is a commercial real estate broker and developer in Westport. He was until March the senior managing director of the New York office of C. B. Richard Ellis, the commercial real estate brokerage company. He graduated from Emory and received a law degree from Yeshiva University. His father is a real estate lawyer in Carle Place, N.Y.

The bridegroom's previous marriage ended in divorce, as did the bride's.

Ms. Shapiro and Mr. Rothschild were introduced by her friend Pamela Hochstin and his friend Elaine Rubin, who had agreed that the two would make a good match. The meeting took place at a party in Ms. Hochstin's home in Scarsdale, N.Y., last July.

''By the next night we were out with each other again,'' Ms. Shapiro said. ''And by the end of that night we were already talking about marriage. When you are older you know what you are looking for. We both knew right away that this would work.''

A remarriage can cause a wide range of dislocations for the couple, their children and their former spouses. In this instance, however, it helped forge a new sense of togetherness. Both Ms. Shapiro and Mr. Rothschild share custody of children with their ex-spouses.

''When Allan and I decided to buy a house in Westport, I asked my ex-husband, who was living in Scarsdale, whether he'd consider moving to Westport,'' Ms. Shapiro said. ''He agreed. Allan's ex-wife and their two children already lived in Westport. And then, my mother bought a home in the Westport area also.''

Almost everybody will attend the wedding; Mr. Rothschild's 11-year-old son is to be his best man.

''We're the new Brady Bunch,'' the bride gushed.