How many people did the Black Death kill?

Estimates vary widely, but many scholars suggest the plague killed roughly a third to a half of Europe's population between 1347 and 1351.

What were its longer-term effects?

Severe depopulation tended to raise wages, weaken some forms of servile labour, alter landholding, and reshape social and economic relations across much of Europe.

Late Medieval Crisis and the Black Death

Famine, plague, and economic disruption struck fourteenth-century Europe with devastating force, the Black Death of 1347–1351 killing perhaps a third or more of the population and reshaping society for generations.

Definition

The late medieval crisis denotes the cluster of fourteenth-century catastrophes — famine, the Black Death and recurring plague, war, and economic contraction — that reversed centuries of growth and transformed European demography, economy, and society.

Scope

Covers the demographic, economic, and social upheavals of the later Middle Ages: the Great Famine of 1315–1322, the arrival and recurrence of plague, mortality and its long-term consequences for labour and land, social conflict and revolt, and debates over climate, disease, and the so-called general crisis of the fourteenth century.

Core questions

What caused the Great Famine and the Black Death?
How severe was mortality, and how is it estimated?
How did depopulation reshape labour, wages, and landholding?
Was there a unified 'crisis' or a coincidence of distinct shocks?

Key theories

Malthusian crisis model: The view that high-medieval population growth outran agricultural capacity, leaving an overstretched society vulnerable to famine and plague, which then forced a demographic correction and reorganization of the economy.
Environmental-epidemiological synthesis: Bruce Campbell's 'Great Transition' framework integrating climate change, ecological stress, and the biology of Yersinia pestis to explain the timing and scale of the late-medieval crisis.

History

The Great Famine of 1315–1322 weakened a crowded population; the Black Death, reaching Europe in 1347, killed an enormous share of the population within a few years and recurred for generations. Labour shortages raised wages, loosened servile obligations in some regions, and contributed to revolts, fueling long debates about the period's place in European development.

Debates

Scale and demographic impact: Scholars disagree over plague mortality rates and how thoroughly the Black Death, as opposed to pre-existing pressures, transformed the medieval economy and society.

Key figures

Ole J. Benedictow
John Hatcher
Bruce M. S. Campbell
Rosemary Horrox

Seminal works

benedictow2004
campbell2016
horrox1994

Frequently asked questions

How many people did the Black Death kill?: Estimates vary widely, but many scholars suggest the plague killed roughly a third to a half of Europe's population between 1347 and 1351.
What were its longer-term effects?: Severe depopulation tended to raise wages, weaken some forms of servile labour, alter landholding, and reshape social and economic relations across much of Europe.