Robert of Molesme.

Martha Gay Newman has written:

'The boundaries of charity : the Cistercians in twelfth-century society' -- subject(s): Cistercians, History

The Cistercians are monks, while the Franciscans and Dominicans are both friars, the only thing that they have in common is that they are all religious Orders of the Catholic Church. The Cistercians were a reform of the Benedictine monasteries of the Cluny family which started in 1098 with St. Bernard of Clairvaux. The Franciscans and Dominicans were founded from nothing by St. Francis and St. Dominic (respectively) in 1209 and 1216.

Thomas Merton

Cistercians, Franciscans, and Dominicans are all Catholic religious orders. The Cistercians focus on a contemplative and monastic lifestyle, the Franciscans emphasize poverty and simplicity in their service to the poor, and the Dominicans are known for their commitment to preaching and teaching. While each order has its own unique charism and history, all three share a dedication to living out the Gospel message in service to others.