The Menologion of Basil II (also called Menologium of Basil II, Menology of Basil II) is an illuminated manuscript designed as a church calendar or Eastern Orthodox Church service book (menologion) that was compiled c. 1000 AD, for the Byzantine Emperor Basil II (r. 976–1025). It contains a synaxarion, a short collection of saints’ lives, compiled at Constantinople for liturgical use, and around 430 miniature paintings by eight different artists. It was unusual for a menologion from that era to be so richly painted. It currently resides in the Vatican Library (Ms. Vat. gr. 1613).[1][2]
A full facsimile was produced in 1907.[3]