See this online essay:

  • “Islam’s Christian Captives, by Darío Fernández-Morera. 4 pages. Available in PDF format at the Intercollegiate Studies Institute. [This is a brief but informative review of the book Captives and their Saviors in the Medieval Crown of Aragon, by Jarbel Rodríguez.]

Posted on the anniversary of the fall of Trebizond, the last Byzantine successor-state of the Christian Roman Empire, to the Ottoman Empire on 15 August 1461; and in belated observance of the Feast of the Holy Martyrs of Otranto, 800 ordinary Catholics who refused to abandon their faith in Christ and were executed by Ottoman forces on 14 August 1480. For more legally free ebooks, you may access the List of Free eBooks (Arranged by Title) and the List of Free eBooks (Grouped by Subject). All ye holy martyrs, pray for us!