Sengoku Japan · War Crimes & Atrocities
Unification required, at every stage, the willingness to destroy things earlier generations had treated as untouchable — sacred mountains, peasant confederations, entire clan bloodlines down to their infant heirs. Nobunaga set the pattern deliberately: burning the Enryaku-ji and exterminating the Ikkō-ikki over a decade announced that no institution, however ancient or popular, would be permitted to check central authority, and his successors extended the same logic to religion, to defeated rivals' families, and finally to the Toyotomi's own bloodline. What follows is not a complete list — Sengoku Japan's century of civil war produced atrocity on every side, continuously — but the events that most shaped what came after: the end of sacred immunity, the closing of Japan to Christianity, and the total, deliberate erasure of the losing side's capacity to ever return.
20,000+
deaths
Victims: The monks, lay residents, women, and children of the Enryaku-ji temple complex(Contemporary and near-contemporary accounts range from a few thousand to over 20,000; the temple complex itself was destroyed almost entirely)
Victims: Azai Nagamasa and Asakura Yoshikage, defeated rival daimyō, and their extended clans(The skull display followed the clans' destruction in 1573, in which both leaders and much of their immediate families died or were killed)
25,000+
deaths
Victims: Ikkō-ikki followers sheltering in fortified strongholds, including large numbers of women and children(Estimates range from 20,000 to as high as 40,000 across the several fortresses destroyed)
Victims: The civilian population and lay believers sheltering within the besieged temple-fortress(Never systematically counted; a decade of intermittent blockade, famine, and fighting killed an unknown but substantial number of non-combatants inside the complex)
12,000+
deaths
Victims: The population of Iga Province, including many ninja clan communities and civilians(Estimates vary widely; some traditional accounts describe most of the province's population as killed or displaced)
3,000+
deaths
Victims: Takeda Katsuyori, his family, and surviving Takeda retainers across former Takeda territory(Estimates for the systematic hunting-down of Takeda loyalists in the following weeks vary; several thousand are commonly cited across the campaign)
4,000+
deaths
Victims: The garrison and inhabitants of Takamatsu Castle, in low-lying marshland(Deaths from drowning and subsequent disease during the inundation are poorly documented but described as substantial)
Victims: European Christian missionaries and, over time, thousands of Japanese converts(The 1587 edict itself caused few immediate deaths but established the legal basis for the executions that followed a decade later)
26+
deaths
Victims: Six European Franciscan missionaries and twenty Japanese Christians, including three young boys
1+
deaths
Victims: Toyotomi Kunimatsu, Hideyori's young son and the last direct Toyotomi heir