According to the Erl. Briefw., vol. IX, p. 48, the third addressee is not Erhard Steinbach, who was one of the deacons at that time, but Eberhard Schaubitz, who as pastor at Nicolai formed the city ministry with Spalatin and Brisger.
No. 1820.
Complete Luther Library
To Spalatin, Eberhard Brisger and Eberhard [Schaubis] in Altenbnrg.
Volume 21b from the one-column St. Louis Edition English DOCX texts, reformatted for mobile reading on Last Christian Ministries.
Source text used with permission from Back to Luther.