In time, many vassals who held such grants of land came to exercise rights of jurisdiction or political and legal authority within their fiefs.
As the Carolingian world disintegrated politically under the impact of dissension within and invasions from without, an increasing number of powerful lords arose.
The vassals of a king, who were them-selves great lords, might also have vassals who would owe them military service in return for a grant of land from their estates.
Those vassals, in turn, might likewise have vassals, who at such a level would be simple knights with barely enough land to provide their equipment.
The lord-vassal relationship, then, bound together both greater and lesser landowners.
They possessed little real power over the great lords who held fiefs throughout France.
The lord-vassal relationship at all levels always constituted an honorable relationship between free men and did not imply any sense of servitude.
With their rights of jurisdiction, fiefs gave lords virtual possession of the rights of government.
Free peasants gave up their freedom to the lords of large landed estates in return for protection and use of the lord’s land.
Although a large class of free peasants continued to exist, increasing numbers of them became bound to the land as serfs.
Unlike slaves, serfs could not be bought and sold, but they were subservient to their lords in a variety of ways.
Serfs were required to provide labor services, pay rents, and be subject to the lord’s jurisdiction.
By the ninth century, probably 60 percent of the population of western Europe had become serfs.
A serf’s labor services consisted of working the lord’s demesne , the land retained by the lord, which might encompass one-third to one-half of the cultivated lands scattered throughout the manor , as well as building barns and digging ditches.
Although labor requirements varied from manor to manor and person to person, a common work obligation was three days a week.
The serfs paid rent by giving their lord a share of every product they raised.
Serfs also paid the lord for the use of the manor’s common pasturelands, streams, ponds, and surrounding woodlands.
For example, if tenants fished in the pond or stream on a manor, they turned over part of the catch to their lord.
Although free to marry, serfs could not marry anyone outside their manor without the lord’s approval.
Moreover, lords sometimes exercised public rights or political authority on their lands.
This gave the lord the right to try serfs in his own court, although only for lesser crimes . In fact, the lord’s manorial court provided the only law that most serfs knew .
Finally, the lord’s political authority enabled him to establish monopolies on certain services that provided additional revenues.
Serfs could be required to bring their grain to the lord’s mill and pay a fee to have it ground into flour.
Thus, the rights a lord possessed on his manor gave him virtual control over both the lives and the property of his serfs.
A single village might constitute a manor, or a large manor might encompass several villages.
By 750, the empire consisted only of Asia Minor, some lands in the Balkans, and the southern coast of Italy.
Although Byzantium was beset with internal dissension and invasions in the ninth century, it was able to deal with them and not only endured but even expanded, reaching its high point in the tenth century, which some historians have called the golden age of Byzantine civilization.
During the reign of Michael III, the Byzantine Empire began to experience a revival.
The Bulgars mounted new attacks, and the Arabs continued to harass the empire.
The problems that arose during Michael’s reign were effectively dealt with by a new dynasty of Byzantine emperors known as the Macedonians .
Thanks to this prosperity, the city of Constantinople flourished. To western Europeans, it was the stuff of legends and fables.
In the midst of this prosperity, Byzantine cultural influence expanded due to the active missionary efforts of eastern Byzantine Christians.
Eastern Orthodox Christianity was spread to eastern European peoples, such as the Bulgars and Serbs.
Under the Macedonian rulers, Byzantium enjoyed a strong civil service, talented emperors, and military advances.
The Byzantine civil service was staffed by well-educated, competent aristocrats from Constantinople who oversaw the collection of taxes, domestic administration, and foreign policy.
At the same time, the Macedonian dynasty produced some truly outstanding emperors skilled in administration and law, including Leo VI and Basil II .
In the tenth century, competent emperors combined with a number of talented generals to mobilize the empire’s military resources and take the offensive.
The Bulgars were defeated, and both the eastern and western parts of Bulgaria were annexed to the empire.