Alexander Gordon, 1911 Encyclopædia Britannica, Volume 19… (1911)
“ For six years he preached his new gospel, under difficulties, in various seats of his order, lastly at Zwickau, whence he was called to Gotha (Aug. 1524) by Duke John at the general desire. Here he married Margaret Jäcken, a lady of good family. He was intimately connected with the general progress of the reforming movement, and was especially in the confidence of Luther. ”
