This period, which begins with the reign of the usurper King, Henry IV, is dominated by war: the last half of the 100 year war with France, which, with the help of Joan of Arc, took all English land on the continent except the port of Calais, and the War of the Roses in England. The barons and earls returned from France with their private fighting units. Nobles employed men who had returned from fighting to use their fighting skill in local defense. All the great houses kept bands of armed retainers. These retainers were given land or pay or both as well as liveries [uniforms or badges] bearing the family crest. They came to fight for the cause of one of the two royal family lines competing for the throne. In the system of "livery and maintenance", if the retainer was harassed by the law or by enemies, the lord gave him protection [maintenance].

In both wars, the musket was used as well as the long-bow. Cannon were used to besiege castles and destroy their walls, so many castles were allowed to deteriorate. The existence of cannon also limited the usefulness of town walls for defense.

Barons and earls settled their disputes in the field rather than in the royal courts. And men relied increasingly on the protection of the great men of their neighborhood and less on the King's courts for the safety of their lives and land. Local men involved in court functions usually owed allegiance to a lord which compromised the exercise of justice. Men serving in an assize often lied to please their lord instead of telling the truth. Lords maintained, supported, or promoted litigation with money or aid supplied to one party to the detriment of justice. It was not unusual for lords to attend court with a great force of retainers behind them. Royal justices were flouted or bribed. The King's writ was denied or perverted. For 6-8s., a lord could have the King instruct his sheriff to impanel a jury which would find in his favor. A statute against riots, forcible entries, and, excepting the King, magnates' liveries of uniform, food, and badges to their retainers, except in war outside the nation, was passed, but was difficult to enforce because the offenders were lords, who dominated the Parliament and the council.

Since the power of the throne changed from one faction to another, many bills of attainder caused lords to lose their lands to the King. Fighting between lords and gangs of ruffians holding the roads, breaking into and seizing manor houses, and openly committing murders continued. The roads were not safe. People turned to mysticism to escape from the everyday violent world. They had no religious enthusiasm, but believed in magic and sorcery.

With men so often gone to fight, their wives managed the household alone. The typical wife had maidens of equal class to whom she taught household management, spinning, weaving, carding wool with iron wool-combs, heckling flax, embroidery, and making garments. There were foot-treadles for spinning wheels. She taught the children. Each day she scheduled the activities of the household including music, conversation, dancing, chess, reading, playing ball, and gathering flowers. She organized picnics, rode horseback and went hunting, hawking to get birds, and rabbit-ferreting. She was nurse to all around her. If her husband died, she usually continued in this role because most men named their wives as executors of their wills with full power to act as she thought best.

For ladies, close-fitting jackets came to be worn over close-fitting long gowns with low, square-cut necklines and flowing sleeves, under which was worn a girdle. All her hair was confined by a hair net. Headdresses were very elaborate and heavy, trailing streamers of linen. Some were in the shape of hearts, butterflies, crescents, double horns, or long cones. Men also were wearing hats rather than hoods. They wore huge hats of velvet, fur, or leather. Their hair was cut into a cap-like shape on their heads, and later was shoulder-length. They wore doublets with thick padding over the shoulders or short tunics over the trucks of their bodies and tightened at the waist to emphasize the shoulders. Their collars were high. Their sleeves were long concoctions of velvet, damask, and satin, sometimes worn wrapped around their arms in layers. Their legs were covered with hose, often in different colors. Shoes were pointed with upward pikes at the toes. At another time, shoes were broad with blunt toes. Both men and women wore much jewelry and ornamentation.

Cooking and the serving of meals was also elaborate. There were many courses of a variety of meats, fish, stews, and soups, with a variety of spices. The standard number of meals was three: breakfast, dinner, and supper. The diet of an ordinary family such as that of a small shopholder or yeoman farmer included beef, mutton, pork, a variety of fish, both fresh and salted, venison, nuts, peas, oatmeal, honey, grapes, apples, pears, and fresh vegetables. Cattle and sheep were driven from Wales to English markets. This droving lasted for five centuries.

Many types of people besides the nobility and knights now had property and thus were considered gentry: female lines of the nobility, merchants and their sons, lawyers, auditors, squires, and peasant-yeomen. The burgess grew rich as the knight dropped lower. The great merchants lived in mansions which could occupy whole blocks. Typically, there would be an oak-paneled great hall, with adjoining kitchen, pantry, and buttery on one end and a great parlor to receive guests, bedrooms, wardrobes, servants' rooms, and a chapel on the other end or on a second floor. The beds were surrounded by heavy draperies to keep out cold drafts. Master and servants ceased to eat together in the same hall. In towns these mansions were entered through a gate through a row of shops on the street. A lesser dwelling would have these rooms on three floors over a shop on the first floor. An average Londoner would have a shop, a storeroom, a hall, a kitchen, and a buttery on the first floor, and three bedrooms on the second floor. Artisans and shopkeepers of more modest means lived in rows of dwellings, each with a shop and small storage room on the first floor, and a combination parlor-bedroom on the second floor. The humblest residents crowded their shop and family into one 6 by 10 foot room for rent of a few shillings a year. All except the last would also have a small garden. The best gardens had a fruit tree, herbs, flowers, a well, and a privy. There were common and public privies for those without their own. Kitchen slops and casual refuse continued to be thrown into the street. Floors of stone or planks were strewn with rushes. There was some tile flooring. Most dwellings had glass windows. Candles were used for lighting at night. Torches and oil-burning lanterns were portable lights. Furnishings were still sparse. Men sat on benches or joint stools and women sat on cushions on the floor. Hall and parlor had a table and benches and perhaps one chair. Bedrooms had a curtained bed and a chest. On the feather bed were pillows, blankets, and sheets. Better homes had wall hanging and cupboards displaying plate. Laundresses washed clothes in the streams, rivers, and public conduits. Country peasants still lived in wood, straw, and mud huts with earth floors and a smoky hearth in the center or a kitchen area under the eaves of the hut.

In 1442, bricks began to be manufactured in the nation and so there was more use of bricks in buildings. Chimneys were introduced into manor houses where stone had been too expensive. This was necessary if a second floor was added, so the smoke would not damage the floor above it and would eventually go out of the house.

Nobles and their retinue moved from manor to manor, as they had for centuries, to keep watch upon their lands and to consume the produce thereof; it was easier to bring the household to the estate than to transport the yield of the estate to the household. Also, at regular intervals sewage had to be removed from the cellar pits.