What is "gniezno"

Gniezno , in earlier in German Gnesen, is a city in central-western Poland, some east of Poznań, with some 70,000 inhabitants. One of the Piast dynasty's chief cities, it was mentioned in 10th-century sources, including the Dagome Iudex, as the capital of Piast Poland. The Roman Catholic archbishop of Gniezno is the primate of Poland, making it the country's ecclesiastical capital. It has belonged since 1999 to the Greater Poland Voivodeship, and is the administrative seat of Gniezno County (powiat).