What percentage of people in medieval times have freedom?

Answer 1

In some parts of Europe, nearly everyone was free to some extent. In other parts, there were perhaps 10% or more who were slaves.

In most medieval countries of Western Europe, slaves were mostly people who had been found guilty of crimes, and their slavery was part of the punishment. In Eastern Europe, there were a large number of slaves, who had been taken captive in wars and slave raids. In fact, the word slave is said to be derived from the name Slav.

Serfs are considered unfree, as they were bound to the soil and not permitted, legally, to move off the manor on which they lived. They provided a part of their time to work for their lords, and another part of their time as common labor to raise crops or animals on fields with other serfs. They also had their own fields, and were permitted to raise what they liked there. They were generally supervised, when they were working as part of groups, by a serf, who they may have chosen for the purpose. They had important rights, and could not be bought or sold as slaves.

Freemen had duties to their lords and kings, the lords had duties to their kings, and even the kings had certain duties they could not avoid.