Because they considered his rules for monastic life to be too strict.
allowed monks to adapt to rural conditions
St. Benedict was famous for founding the Benedictine Order of monks. More than that, he devised a code for the proper behavior of his monks, which is still in use today.
The most famous was the Rule of St. Benedict written by St. Benedict.
Benedictine Confederation
The Benedictines founded by St. Benedict of Nursia
The Benedictine order named for St. Benedict.
There is only a St. Benedict. The word "Benedictine" is an adjective or noun that describes the order of monks or nuns based on the Rule of St. Benedict.
St. Benedict of Nursia is the founder of Western Monasticism. 7th Century AD.
Saint Benedict.
Nowhere.
Pope Gregory the Great