Henrik von Cöllen (1450–1561)
Born 1450 CE, died 1561 CE.
Henrik von Cöllen (died probably 12 May 1561 in Savonia was a German master mason from Prussia, active in Sweden and Finland under King Gustav Vasa. He is best known as the leading master mason in the construction of Gripsholm Castle 1537–1545, and subsequently worked at Uppsala Castle and several fortresses in Finland under John III.
Text from the Wikipedia article Henrik_von_Cöllen, licensed CC BY-SA 4.0.