Gertrude Rhinelander Waldo (May 12, 1842 – May 27, 1914) was an American heiress known for commissioning the Rhinelander Mansion located in Manhattan at 867 Madison Avenue on the south-east corner of 72nd Street, designed in the 1890s by Kimball & Thompson and completed in 1898. According to most sources, she never lived in the mansion, but chose to reside with her sister in a row house across the street from the mansion. Early life Gertrude was born in New York on May 12, 1842. She was the youngest of seven children born to Bernard Rhinelander (1800–1844) and Nancy Elizabeth Mary (née Post) Rhinelander (1806–1895) and was descended from a family that had resided in New York City since the 17th century. Her older siblings included Charles Edward Rhinelander, who married Mathilda Frances Cotheal; Emily Rhinelander, who married Dr. John Watson; and Laura Virginia Rhinelander, who did not marry. Her maternal grandparents were U.S. Representative Jotham Post Jr. and his second wife, Magdalen (née Blaau) Post. Her paternal grandparents were William Rhinelander and Mary (née Robert) Rhinelander. Rhinelander's great-great grandfather, Philip Jacob Rhinelander, was a German-born French Huguenot who immigrated to the United States in 1686 following the revocation of the Edict of Nantes, settling in the newly formed French Huguenot community of New Rochelle, where he amassed considerable property holdings which became the basis for the Rhinelander family's wealth. Personal life On June 6, 1876, she married stockbroker Francis William "Frank" Waldo (1836–1878), despite the fact that he had been bankrupted during the Panic of 1873. In May 1877, before Frank's untimely death in 1878, she gave birth to: Rhinelander Waldo (1877–1927), who became the Fire and Police Commissioner of New York. In 1882, she received an inheritance valued at $360,000 (equivalent to $ today) that consisted largely of real estate. By 1889, she had reportedly been in a relationship with lawyer Charles H. Schieffelin. She sued him in 1899 to reclaim $12,000 (equivalent to $ today) she said he had misappropriated from her that he said he was going to invest the money in various railroad securities. In a counterclaim, Schieffelin said that he had invested the money as directed and that the two of them were going to be married. Waldo responded that she would never have married Schieffelin because of his earlier divorce. Gertrude died of apoplexy on May 27, 1914. After a funeral at the