_1580._ _Duke William V_ issues an edict directing the immediate delivery to the pastors or magistrates of all copies of heretical books. Persons in whose possession are found any copies of proscribed books are to be so thoroughly punished that thousands shall profit by their example. The effects of deceased persons are to be searched for godless literature. No reading of prohibited books is permitted even to ecclesiastics or magistrates. _1582._ _Duke William_ confirms the authority given to the papal Nuncio, Ninguarda, formerly Vicar-General for Germany of the Dominicans, to issue an Index, which was printed at Munich. It contains the text and the lists of the Index of Trent, and certain additional titles of “heretical, pernicious, or suspicious books.” The greater number of the books had come into print since 1564, but the Bavarian compiler had found some three hundred objectionable authors of earlier date who had escaped the attention of the Indexers of Trent. The additions all find place in Class I. They possess some continued importance as with hardly an exception they were later included in the Index of Sixtus V. These three hundred names of pernicious authors, all of whose writings are thus placed under condemnation, had been taken by Ninguarda from the catalogue of the Frankfort Book-Fair, for the years 1568–1581. The greater number were transcribed from the divisions headed: _Protestantium Theologorum Scripta de rebus sacris_ and _Der Protestierenden Theologen Teutsche Schriften_, but there are also citations from the divisions of history, philosophy, and poetry. In this manner, the lists of the Roman Index have been made to include, mingled in with the well-known names of the great teachers of Protestant doctrine, the names of unknown authors whose writings were of trifling importance and of no theological or controversial significance. They might well have felt complimented at the distinction of such an association. It was the case also that certain books announced in these publishers’ catalogues never came into publication. Their “authors” secured none the less the honour of a general condemnation, in Class I, not only in the local Index of Munich, but in the Sistine Index of Rome addressed to the whole Christian world. The names are naturally, in the main, German and Swiss, but there are a few French and English, such as de Loquis, Petrus Ramus, Beza, John Parkhurst, Thomas Dranta (under the poets). The Duke gave orders that copies of this Index must be placed in all monasteries and with all priests, confessors, and deacons. The Nuncio gave authority to the bishops to appoint commissaries charged with the work of carrying out the regulations of the Index.[153]