First found in Surrey where they were anciently seated as Lords of the Manor of Therfield. After the Battle of Hastings in 1066, William, Duke of Normandy, having prevailed over King Harold, granted most of Britain to his many victorious Barons. It was not uncommon to find a Baron, or a Bishop, with 60 or more Lordships scattered throughout the country. These he gave to his sons, nephews and other junior lines of his family and they became known as under-tenants. They adopted the Norman system of surnames which identified the under-tenant with his holdings so as to distinguish him from the senior stem of the family. After many rebellious wars between his Barons, Duke William, commissioned a census of all England to determine in 1086, settling once and for all, who held which land. He called the census the Domesday Book, indicating that those holders registered would hold the land until the end of time. Hence, conjecturally, the surname is descended from the tenant of the lands in Essex at Roding Berniers and Bernston who was recorded in the Domesday Book census of 1086. They are believed to be descended from Hugh de Berniers in Normandy near Falaise. They also held in Cambridge at Eversdon, his main domain.

Some of the first settlers of this family name or some of its variants were: Gregory Berners, who arrived in Halifax, N.S. in 1749; Jane Berners, who settled in Virginia in 1775; and Robert Berner, who arrived in Texas in 1852..

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