Union of Utrecht Union of Utrecht The Union of Utrecht () was a treaty signed on 23 January 1579 in Utrecht, the Netherlands, unifying the northern provinces of the Netherlands, until then under the control of Habsburg Spain. The Union of Utrecht is regarded as the foundation of the Republic of the Seven United Provinces, which was not recognized by the Spanish Empire until the Twelve Years' Truce in 1609. The treaty was signed on 23 January by Holland, Zeeland, Utrecht (but not all of Utrecht) and the province (but not the city) of Groningen. The treaty was a reaction of the Protestant
Utrecht Archive remodeled during these days as well, including the part were the old façade still stands. In 2000, the Court of Law moved to a new building at the Catharijnesingel. The Utrecht Archives have been located in this building since June 2008. Utrecht Archive The institution Archives of Utrecht (Dutch: "Het Utrechts Archief" (HUA)) is a records department in the Dutch City of Utrecht. The Utrecht Archives manages the biggest and richest collection of documents about the history of the city and the province of Utrecht and its towns and people. With over 200 km of archives, images (such as prints,