See this legally free ebook:

  • Patrology: The Lives and Works of the Fathers of the Church, by Professor Otto Bardenhewer, D.D., Ph.D., translated from the 2nd edition by Professor Thomas Joseph Shahan, D.D. (Freiburg im Breisgau; St. Louis, Mo.; Karlsruhe; Munich; Strassburg; Vienna: B. Herder, 1908). With Imprimatur, and with the approbation and recommendation of various archbishops and bishops. May be read online, and available in pdf, mobi, epub and other formats, at Open Library and Internet Archive, with a 2nd copy at Internet Archive, a 3rd copy at Internet Archive, and a 4th copy at Internet Archive.

See also the texts listed on the pages Early Christianity and Eastern Catholicism.

On the Synaxis of the Three Holy Hierarchs in the Eastern Catholic Churches of the Byzantine Rite, and the Feast of Saint Maximus the Confessor in the Maronite Church, within the one true and Catholic Church. For other texts and ebooks, you may access the List of Free eBooks (Arranged by Title), the List of Free eBooks (Grouped by Subject), the List of Worth-It Catholic Books & eBooks, and the main page of the Catholic eBooks Project.