Nestled in the heart of Manhattan’s Upper East Side, an opulent duplex apartment at 1136 Fifth Avenue beckons with a regal lineage. Originally designed by renowned architect George F. Pelham as his personal residence, the apartment later became the home of the late Sicilian Princess Maria Niscemi Romanoff and her husband, Prince Alexander Nikitich Romanoff. Spanning over 4,000 square feet, the apartment exudes grandeur with soaring 25-foot ceilings, intricate plasterwork, black-and-white marble floors, and a baronial foyer. Among its four bedrooms and four-and-a-half bathrooms, two bedrooms share a Jack-and-Jill bath, while the other two have ensuite baths. The apartment’s historic charm extends beyond its architecture, as it has also graced the screens of the popular TV show Gossip Girl and once belonged to Warner Music Group’s former CEO, Stephen Cooper.