The monastery of Humor is up the Humor River, near the town of Gura Humorului, among wooded hills. Around it, in the river valley, the village has grown that bears the name of the monastery, Mănăstirea Humorului.
The ruins of the first church of Humor Monastery are 500 m down the road. A document issued by Alexander the Kind in 1415 confirmed that Judge Ivan(Oana) had built a monastery in Humor. The church was built of massive blocks of stone, decorated outside with enamelled ceramic discs and painted inside, as fragments of paint recovered by archaeologists show.
During the 15th century, Humor was among the most important monasteries in the country. It is not known why a monastery of such importance was ruined. But many other monasteries faced the same fate around the same time.
It is possible that some kind of disaster caused their partial collapse during the 3rd decade of the 16th century. Petru Rareş started to rebuild the older ruined churches. In 1530, the same year he started building his burial place in Probota, also the construction of a new church, dedicated to the Assumption of the Virgin, was begun in Humor. The initiative seems to have been of Rareş, as stated on the commemorative inscription on the south façade of the church, but the new founder was a nobleman, the Great Chancellor Toader, named in later documents Bubuiog or Boboiog. He was married to Anastasia, the daughter of the highest nobleman in Stephen the Great's court, Chancellor Ioan Tăutu, founder of Bălineşti Church. He died in 1539, and was buried in the church of Humor.
The monastery was plundered several times during the next centuries, as recorded in The Four Gospels of Humor, which itself was stolen several times and always bought back. Prince Vasile Lupu fortified the monastery in 1641, by building a precinct wall and a tall watchtower, the only part still remaining of the defenses. Seemingly, they were not of much help. In 1775, the new Austrian administration of Bucovina abolished the monastery. The church was transformed into a parish church, and the monastic buildings were abandoned and ruined. In the 1980s, a new church was built for the parish of the village, and the former monastery church was opened for visits. The monastic community was refounded in 1992, and in 1993, together with six other churches with exterior frescoes, the church of Humor was included in the World Heritage List.