What did peasants (serfs) receive in exchange for their labour under the feudal system?

Under the feudal system introduced by the Normans, the king owned all the land. He gave large estates to his most important followers (barons and lords) in return for their loyalty and military service. These lords then divided their land among knights, who in turn allowed peasants (serfs) to farm small plots in exchange for labour and a share of their crops.

The Domesday Book, completed in 1086, was a great survey ordered by William the Conqueror. It recorded details of every town, village, and farm in England — who owned the land, how much it was worth, and how many people and animals lived there. It was used to calculate taxes. The Domesday Book is one of the most important historical documents in England and still survives today.