Question

the cluniacs are also known as black monks is it true​

Answer 1

Known originally as the Black Monks because they wore black cloaks they became known as Benedictines later on when new Orders began to appear to distingish them from the others. Benedictine monasteries were common across both England and Normandy at the time of William the Conqueror.

Answer 2

Cluniacs were Benedictine monks from the monastery of Cluny (Burgundy) founded by William, duke of Aquitaine, in 909. ... Though initially subject to Cluny's authority and hence regarded as 'alien priories' and liable to sequestration during the Anglo-French wars, most purchased national identity as 'denizens'.

hope I helped :)))