Final answer:
The Abbey of Cluny, founded in France in the 900s, served as an example to people around Europe and played a key role in the Cluniac reform movement.
Step-by-step explanation:
The new monastery founded in France in the 900s that served as an example to people around Europe is the Abbey of Cluny. The Abbey of Cluny was established in the town of Cluny and became one of the most influential monastic centers during the Middle Ages. It played a key role in the Cluniac reform movement and inspired the development of other monastic communities throughout Europe.