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
Sofia City Province Sofia City Province Sofia City Province (, "Oblast Sofiya-grad") is a province ("oblast") of Bulgaria. Its administrative center is the city of Sofia, the capital of the country. The province borders on Sofia Province and Pernik Province. It is a city-state, consisting of only 1 municipality – the Sofia Capital Municipality. Bankya, Buhovo, Novi Iskar, Sofia Balsha, Bistritsa, Busmantsi, Chepintsi, Dobroslavtsi, Dolni Bogrov, Dolni Pasarel, German, Gorni Bogrov, Ivanyane, Jeleznitsa, Jelyava, Jiten, Kazichene, Klisura, Kokalyane, Krivina, Kubratovo, Katina, Lokorsko, Lozen, Malo Buchino, Marchaevo, Mirovyane, Mramor, Negovan, Pancharevo, Plana, Podgumer, Svetovrachene, Vladaya, Voluyak, Voynegovtsi, Yana Population (2011 census): 1 291 591