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
Provincial city (Vietnam) Provincial city (Vietnam) Provincial city (; Chữ nôm: 城舗直屬省), commonly known as City, a type of second tier subdivision of Vietnam is divided into 713 units along with urban district, district, and town have equal status. Also by virtue of Decree No. 42/2009/ND-CP, city are officially classified into Class-1, Class-2 or Class-3. The cities can only subordinate to Province as the Second Tier unit. At the Third Tier, City is divided into wards and communes. Cities are usually provincial urban and administrative centers. Some cities also was appointed provincial economic centers and the culture center of a region (between provinces).