Fort Orange was the first permanent Dutch settlement in New Netherland; the present-day city of Albany, New York developed at this site. It was built in 1624 as a replacement for Fort Nassau, which had been built on nearby Castle Island and served as a trading post until 1617 or 1618, when it was abandoned due to frequent flooding. Both forts were named in honor of the Dutch House of Orange-Nassau. Due to a dispute between the Director-General of New Netherland and the patroonship of Rensselaerswyck regarding jurisdiction over the fort and the surrounding community, the fort and community became an independent municipality, paving the way for the future city of Albany. After the English reconquered the region they soon abandoned Fort Orange in favor of a new fort: Fort Frederick, constructed in 1676.

New Netherland was the 17th century colonial province of the Republic of the Seven United Netherlands on the northeastern coast of North America. The claimed territory was the land from the Delmarva Peninsula to southern Cape Cod. The settled areas are now part of the Mid-Atlantic states of New York, New Jersey, and Delaware, with small outposts in Connecticut and Pennsylvania. Its capital of New Amsterdam was located at the southern tip of the island of Manhattan on the Upper New York Bay.