Which sources did Philip study before joining the Lutheran Reformation?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Before joining the Lutheran Reformation in the summer of 1524, Philip, Landgrave of Hesse, conducted a detailed study of the following sources:

Following this period of study, Philip became a committed supporter of Martin Luther and eventually played a pivotal role in organizing the political and religious framework of the Protestant movement in Germany.1