The monastery Ihlow was founded in 1228 by Cistercian monks as "Schola Dei", and existed until 1529, among the 28 other monasteries in East Friesian Country, it was one of the most significant; It played an important role in the Middle Ages in regional Politics, Religion, Culture and Civilization. The monastery near the downtown of "Upstalboom", the meeting place of the free Friesians, formed firm and archive the total Friesian movement of the "Friesian freedom". The Seal of the Monks of Ihlow, was also the