§.XII continue: Johann Sigismund & successors bound by oath to AC 1530 as chief Brandenburg symbol — Crocius
For the rest, Johann Sigismund and his successors have bound themselves by various declarations, and their theologians through the Frankfurt theological faculty statutes, by solemn oath, to the Augsburg Confession shown to Charles V in 1530 and later more fully set out — as the chief symbolic book of the Brandenburg lands — and have devoted themselves to it with their whole heart.
See Crocius, Comment on A.C. Society, part 1 entire.
Latin
Cùm ceterà, tàm ipse Joh. Sigismundus, quàm ejus Successores, tum semetipsos Declarationibus variis, tùm Theologos suos, per Statuta etiam Facultatis Theologicae Francofurtensis, solenni juramento, ad August. Conf. Carolo V. Anno 1530. exhibitam, ac deinceps prolixius expositam, ceu ad praecipuum Regionum Brandenburgicarum Librum Symbolicum, seriò severéque obligaverint, totóque pectore addixerint. Vid. Joh. Crocium Comment. de A. C. Societate parte 1. integra, à pag. 1. ad 30.;