The essence of Norman feudalism was that the land remained under the lord, whatever the vassal might do. The lord had the duty to defend the vassals on his land. The vassal owed military service to the lord and also the service of attending the courts of the hundred and the county [formerly "shire">[, which were courts of the King, administering old customary law. They were the King's courts on the principle that a crime anywhere was a breach of the King's peace. The King's peace that had covered his residence and household had extended to places where he might travel, such as highways, rivers, bridges, churches, monasteries, markets, and towns, and then encompassed every place, replacing the general public peace. Infraction of the King's peace incurred fines to the King.
This feudal bond based on occupancy of land rather than on personal ties was uniform throughout the realm. No longer could a man choose his lord and transfer his land with him to a new lord. He held his land at the will of his lord, to be terminated anytime the lord decided to do so. A tenant could not alienate his land without permission of his lord. In later eras, tenancies would be held for the life of the tenant, and even later, for his life and those of his heirs.
This uniformity of land organization plus the new requirement that every freeman take an oath of loyalty directly to the king to assist him in preserving his lands and honor and defending him against his enemies, which oath would supersede any oath to any other man, gave the nation a new unity. The king could call men directly to the fyrd, summon them to his court, and tax them without intervention of their lords. And the people learned to look to the king for protection from abuse by their lords.
English villani, bordarii, cottarii, and servi on the land of the barons were subjugated into a condition of "villeinage" servitude and became "tied to the land" so that they could not leave the land without their lord's permission, except to go on a pilgrimage. The villeins formed a new bottom class as the population's percentage of slaves declined dramatically. They held their land of their lord, the baron. To guard against uprisings of the conquered people, the barons used villein labor to build about a hundred great stone castles, with moats and walls with towers around them, at easily defensible positions such as hilltops all over the nation.
A castle could be built only with permission of the King. A typical castle had a stone building of about four floors The castle building typically was entered by an outer wood staircase to the guard room on the second floor. The first [ground] floor had a well and was used as a storehouse and/or dungeons for prisoners. The second floor had a two-storied great hall, with small rooms and aisles around it within the thick walls. There was also a chapel area on the second floor. There were small areas of the third floor which could be used for sleeping. The floors were wood and were reached by a spiral stone staircase in one corner of the building. Sometimes there was a reservoir of water on an upper level with pipes carrying the water to floors below. Each floor had a fireplace with a slanted flue going through the wall to the outside. There were latrines in the corner walls with a pit or shaft down the exterior of the wall, sometimes to the moat. Furs and wool clothes were hung on the walls there in the summer to deter the moths. The first floor had only arrow slits in the walls, but the higher floors had small windows. Some curtain-wall castles did not have a central building. In these, the hall was built along the inside of the walls, as were other continuous buildings. The kitchens and chapels were in the towers. Lodgings were in buildings along the curtain-walls, or on several floors of the towers. The great hall was the main room of the castle. The hall was used for meals and meetings at which the lord received homages, recovered fees, and held the view of frankpledge [free pledge in Latin], in which freemen agreed to be sureties for each other. At the main table, the lord and his lady sat on benches with backs or chairs. The table was covered first with a wool cloth that reached to the floor, and then by a smaller white linen cloth. Everyone else sat on benches at trestle tables, which could be folded up, e.g. at night. Over the main door were the family arms. On the upper parts of the walls could be foxskins and perhaps a polecat skin, and keepers' and huntsmen's poles. There were often hawk perches overhead. At the midday dinner, courses were ceremonially brought in to music, and ritual bows were made to the lord. The food at the head table was often tasted first by a servant as a precaution against poison. Hounds, spaniels, and terriers lay near the hearth and cats, often with litters, nestled nearby. They might share in dinner, but the lord may keep a short stick near him to defend morsels he meant for himself. Hunting, dove cotes, and carp pools provided fresh meat. Fish was compulsory eating on Fridays, on fast days, and during Lent. Cooking was done outside on an open fire, roasting on spits and boiling in pots. Some spits were mechanized with a cogged wheel and a weight at the end of a string. Other spits were turned by a small boy shielded from the heat by a wet blanket, or by dogs on a treadmill, or by a long handle. Underneath the spit was a dripping pan to hold the falling juices and fat. Mutton fat was used for candles. Bread, pies, and pastry dishes were baked in an oven: a hole in a fireproof stone wall fitted with an iron door, in which wood was first burnt to heat the oven walls. It could also be used for drying fruit or melting tallow. Fruits were also preserved in honey. Salt was stored in a niche in the wall near the hearth and put on the table in a salt cellar which became more elaborate over the years. Salt was very valuable and gave rise to the praise of a man as the salt of the earth. Costly imported spices such as cinnamon, cloves, nutmeg, ginger, pepper, and a small quantity of sugar were kept in chests. Pepper was always on the table to disguise the taste of tainted meat. Drinks included wine, ale, cider from apples, perry from pears, and mead. People carried and used their own knives. There were no forks. Spoons were of silver or wood. People also ate with their fingers and washed their hands before and after meals. It was impolite to dig into the salt bowl with a knife not previously wiped on bread or napkin, which was linen. It was unmannerly to wipe one's knife or one's greasy fingers on the tablecloth or, to use the tablecloth to blow one's nose. Feasts were stately occasions with costly tables and splendid apparel. There were practical jokes, innocent frolics, and witty verbal debating with repartee. They played chess, checkers, and various games with cards and dice. Most people could sing and some could play the lute. Lighting of the hall at night was by oil lamps or candles on stands or on wall fixtures. For outside activities, a lantern Markets grew up outside castle walls. Any trade on a lord's land was subject to "passage", a payment on goods passing through, "stallage", a payment for setting up a stall or booth in a market, and "pontage", a payment for taking goods across a bridge.