Esrum Monastery is a historic site located in Denmark, founded in 1151 by monks from Vallombrosa. It was a Cistercian monastery, known for its beautiful architecture and serene surroundings, situated near Esrum Lake in the North Zealand region. The monastery played a significant role in the local community, contributing to agriculture and trade. It was home to a vibrant monastic life until the Reformation in the 16th century, which led to its decline. Today, the ruins of Esrum Monastery attract visitors interested in history and architecture.