What is "carmelites"

The Order of the Brothers of the Blessed Virgin Mary of Mount Carmel or Carmelites (sometimes simply Carmel by synecdoche; ) is a Roman Catholic religious order founded, probably in the 12th century, on Mount Carmel, hence the name Carmelites. However, historical records about its origin remain uncertain. Saint Bertold has traditionally been associated with the founding of the order, but few clear records of early Carmelite history have survived and this is likely to be a later extrapolation by hagiographers.