Pierre Hippolyt Hélyot "Detailed History of Allergeistlichen und weltlichen Ritterorden". 1754/1755. Pierre Hippolyt Hélyot1660 Paris - 1716 ibid. Eight volumes, with a total of 4253 pages and 807 numbered copper plates: vol. I 486 pp., 102 plates, vol. II 516 pp., 119 plates, vol. III 519 pp, 117 plates, vol. IV 542 p., 112 plates, vol. V 566 p., 87 plates, vol. VI 522 p., 100 plates, vol. VII 572 p., 71 plates, vol. VIII 530 p., 99 plates. All volumes with title page. Published in Leipzig by Arkstee and Merkus, 1753. Volume I on the title page with small stamp of the "Fürstlich & [...] Bibliothek" in Augsburg. Cardboard binding of the 19th century, red edges. The "Ausführliche Geschichte Allergeistlichen und weltlichen Ritterorden" by Pierre Hippolyt Helyot is the result of twenty-five years of research. It was first published in French between 1714 and 1719. In 1737 the work was translated into Italian and in 1753 into German. A later edition of 1792 included coloured copper plates. The publication is of great importance for church history, as it provided detailed information on the history of the order up to the end of the 17th century. Overall foxing and wavy due to age.Binding with bumped corners and overall scuffed. Spine slightly rubbed and faded. Volume 7 to page 26 with traces of anobia wear (text damaged). Dimensions: fig. 16.5 x 12.5 cm, fol. 24.5 x 19 cm, book 25 x 21 cm. Pierre Hippolyt Hélyot 1660 Paris - 1716 ibid. Pierre Hélyot was a Franciscan friar and priest of the Third Order of Franciscans and an important scholar of church history with emphasis on the history of the orders.As a young man, he took advantage of two stays in Rome to travel throughout Italy. Upon his return to France, he served as secretary to various provincial superiors of his order. All these opportunities allowed him to gather the necessary material for his publication.