Question

How could serfs move up from the bottom of the social hierarchy?

They could prove themselves in battle.
They had to serve as a serf for a certain number of years.
They had to be freed by their lord.
They could marry into a higher level of the hierarchy.

Answer 1

Correct answer: Mainly "They had to be freed by their lord." The others are possible but not generally reliable routes.

Brief breakdown:
- They had to be freed by their lord — Yes. Formal manumission (or buying freedom) was the usual legal way a serf became free.
- They could prove themselves in battle — Sometimes. Exceptional cases exist (serving as a soldier or mercenary could lead to pay, rewards or even rare ennoblement), but it was not a common or institutional route to freedom for most serfs.
- They could marry into a higher level of the hierarchy — Rare and constrained. Lords normally had to permit marriages; marrying a free person could help in some circumstances, but it was not an easy or guaranteed path upward.
- They had to serve as a serf for a certain number of years — No. Unlike indentured servitude, medieval serfdom was usually tied to the land for life rather than a fixed term.

Other real routes to freedom included buying or being granted manumission, escaping to a town and staying "a year and a day" (in some regions), entering the Church, or gaining royal favor.