Asai Nagamasa

ModernGeneralJapan1545 — 1573

Daimyo of Omi and brother-in-law to Oda Nobunaga.

Compare Asai Nagamasa with another historical figure:

Quick Facts

Born

1545

Died

1573

Country

Japan

Era

Modern

Occupation

General

Score Overview

Military (10%)55

Political (20%)47

Influence (20%)52

Legacy (20%)43

Leadership (15%)66

Strategy (15%)60

Total Score52.1

Asai Nagamasa — Complete Timeline

1564 AD

Alliance with Oda NobunagaPolitical Action◆ Major

Nagamasa formed an alliance with Oda Nobunaga by marrying his sister, Oichi. This alliance strengthened both clans and allowed Nagamasa to expand his territory in Omi Province.

AllianceOdaMarriage

Impact: regionalconstructive

1570 AD

Battle of AnegawaWar◆ Major

Nagamasa's forces, allied with the Asakura clan, were defeated by Oda Nobunaga and Tokugawa Ieyasu at the Battle of Anegawa. This defeat weakened his position.

BattleDefeatOda

Impact: regionaldestructive

Betrayal of Oda NobunagaPolitical Action◆ Major

Nagamasa broke his alliance with Oda Nobunaga and joined the anti-Nobunaga coalition led by the Azai and Asakura clans. This act led to war with Nobunaga.

BetrayalOdaCoalition

Impact: regionaldestructive

1573 AD

Siege of Odani CastleWar◆ Major

Nagamasa was besieged at Odani Castle by Oda Nobunaga's forces. He committed seppuku after the castle fell, ending the Asai clan's resistance.

SiegeSeppukuAsai

Impact: regionaltragic