Confessio Fraternitatis

The Confessio Fraternitatis (Confessio oder Bekenntnis der Societät und Bruderschaft Rosenkreuz), or simply The Confessio, printed in Kassel (Germany) in 1615, is the second anonymous manifestos, of a trio of Rosicrucian pamphlets, declaring the existence of a secret brotherhood of alchemists and sages who were interpreted, by the society of those times, to be preparing to transform the political and intellectual landscape of Europe.

The book is considered to be one of the three foundational manifestos of Rosicrucianism, and inspired Rosicrucian organizations such as Order of the Golden and Rosy Cross (1750s–1790s) and Societas Rosicruciana in Anglia (1865–present).

Signs related to the beginning of the "age" which brings the "Reformation of Mankind", first Manifesto, are described at this second Manifesto as following: The Confessio is a breviary about "the true Philosophy", it completes the earlier manifesto (Fama Fraternitatis, 1614) and in some way it comes to justify it, defending it from the voices and accusations already launched to the mysterious Brothers of the "Fraternity of the Rose Cross".

[citation needed] According to the Confessio a fundamental requisite to achieve this esoteric knowledge is "that we be earnest to attain to the understanding and knowledge of philosophy" and the Rosicrucian Brothers describe themselves as Christian ("What think you, loving people, and how seem you affected, seeing that you now understand and know, that we acknowledge ourselves truly and sincerely to profess Christ") and recommended readers to "addict ourselves to the true Philosophy, lead a Christian life".

Many historical figures have been attributed its authorship, including Francis Bacon.