Hortus deliciarum

Hortus deliciarum (Latin for Garden of Delights) is a medieval manuscript compiled by Herrad of Landsberg at the Hohenburg Abbey in Alsace, better known today as Mont Sainte-Odile. It was an illuminated encyclopedia, begun in 1167 as a pedagogical tool for young novices at the convent. It is the first encyclopedia that was evidently written by a woman. It was finished in 1185, and was one of the most celebrated illuminated manuscripts of the period. The majority of the work is in Latin, with glosses in German.

Most of the manuscript was not original, but was a compendium of 12th century knowledge. The manuscript contained poems, illustrations, and music, and drew from texts by classical and Arab writers. Interspersed with writings from other sources were poems by Herrad, addressed to the nuns, almost all of which were set to music. The most famous portion of the manuscript is the illustrations, of which there were 336, which symbolised various themes, including theosophical, philosophical, and literary themes. These works are well regarded.

In 1870, the manuscript was burnt and destroyed when the library housing it in Strasbourg was bombed during a siege on the city. It is possible to reconstruct parts of the manuscript because portions of it had been copied in various sources; Christian Maurice Engelhardt copied the miniatures in 1818, and the text was copied and published by Straub and Keller between 1879 and 1899.

Hortus deliciarum is one of the first sources of polyphony originating from a convent. The manuscript contained at least 20 song texts, all of which were originally notated with music. Those that can be recognized now are from the conductus repertory, and are mainly note against note in texture. The notation was in semi-quadratic neumes with pairs of four-line staves. Two songs survive with music intact: Primus parens hominum, a monophonic song, and a two-part work, Sol oritur occasus.