Evangeliario longum is a miniature code made in the Abbey of St. Gallen, where it is still preserved in the library, code number 53.

The Chronicle of St Gallen by Eccheardo IV gives the precise occasion that saw the birth of this work: Attone, who became an archicapple of the Franco-eastern sovereigns, accompanied Arnolfo in Italy in early 894, entrusting Solomon, Abbot of St. Gallus from 874 until his return, all his precious: news of Attone's death, the abbot decided to rework the precious, transforming them into objects of liturgical use.

Solomon possessed two ivory diptychs, one carved and the other smooth, the latter was entrusted to Tuotilo, who was "eloquent, brilliant in singing, an elegant artist in chisel art and painting, a musician like his companions but above all in playing all kinds of instruments, rope and breath, "in which he created a Maiestas Domini, with the center of Christ among the cherubim with the symbols of the evangelists and the personifications of the sun, moon, earth and ocean. On the back plate are on two registers the Assumption of the Virgin and St. Gallus bearing a bear on the bear, the text was written by the amanuensis Sintram, and Solomon himself miniated the initials L and C of pages 7 and 11, finally Solomon made decorate the binding tablets with gold and the precious stones of Attone. The work contributed 12 denars to Amata, a woman noted by a 903 document.

wiki