In lieu of an abstract, here is a brief excerpt of the content:Guibert of Tournai's Letter to Lady Isabelle:An Introduction and English TranslationLarry F. Field, Jacques Dalarun, Sean L. Field, and Guibert of TournaiIntroductionGuibert, from the noble family of As-Piès, was born near Tournai around 1200. From his hometown he traveled to Paris for his art degree, and completed the curriculum in theology there before entering the Franciscan Order around 1240. He may have participated in Louis IX's crusade of 1248, (...) but, if so, was surely back in Paris by 1254 at the latest, since he preached a cycle of sermons de dominicis et de sanctis to the university community before summer 1255.1 His regency as Franciscan master of theology at Paris was probably around 1259–1261,2 about the time he [End Page 31] completed his Eruditio regum et principum for Louis IX,3 and began his most substantial work, the Erudimentum doctrinae.4 Other significant treatises include his De pace et animi tranquillitate (ca. 1275)5 written for Marie de Dampierre, and the Collectio de scandalis ecclesiae, prepared for the Second Council of Lyon.6 Guibert died in Tournai on 7 October 1284.7Sometime around 1254, Guibert wrote a long letter of spiritual advice to Isabelle (1225–70), the sister of King Louis IX.8 Isabelle was herself a remarkable figure. She had rejected several proposals of marriage, including that with Conrad, the heir to Emperor Frederick II, in 1243, in spite of pressure from her family and Pope Innocent IV. But following a bout of serious illness at about that time,9 her family accepted her [End Page 32] decision to remain unwed. There is no evidence, however, that Isabelle ever pronounced a formal vow of virginity. Through the 1250s she simply remained at the Capetian court as a virgin princess with an increasing reputation for piety and indeed holiness, praised in lavish terms by Innocent IV in 1253 and Alexander IV in 1256.10 This piety took a distinctly Franciscan turn by 1254, when Pope Innocent IV granted her request for Franciscan confessors,11 which would ultimately result in her foundation of Longchamp, a house of Sorores minores just west of Paris, by 1260.12 Guibert's letter shows no awareness of such a project, indicating that it must have been written before spring 1255, by which time the land for Longchamp was being purchased on Isabelle's behalf.13 Guibert thus wrote at the moment when Isabelle was forming her first ties to the Franciscans, but well before her move to Longchamp, where she lived out the 1260s as resident lay patron (but never a nun).Guibert's Letter is really a short treatise of spiritual and moral advice, tailored to a celibate princess. It is organized around Psalm 44:14–15, All the glory of the king's daughter is within in golden fringes, clothed around with varieties. In a five-part structure, the king's daughter stands for a heavenly inheritance; glory within represents internal purity; gold indicates virginity; the fringes are a sign of humility; and clothed around with varieties points to honest comportment. The resulting "royal garment," however, is rather unequally woven together, with section one on the "heavenly inheritance" and the intertwined sections three and four on virginity and humility receiving by far the most space. In fact, section one forms a sort of treatise-within-a-treatise, organized as a ten-step ascent to the heavenly inheritance awaiting the daughter of the king. [End Page 33]The Letter to Lady Isabelle was first edited by Alphonse de Poorter in 1931, from a manuscript which contained only part of the text.14 The full text was brought into print by Sean Field in 2003,15 and translated into French by Jacques Dalarun in 2014.16 Yet in spite of these advances, the Letter has remained little noticed by scholars. Anne-Hélène Allirot offered several perceptive pages in 2010, stressing the way Guibert's treatment of hereditas implies that female members of the royal family might be particularly able to embody Capetian claims to holiness.17 That same year, in the only recent article dedicated specifically to this Letter, Rina Lahav... (shrink)