Battle of Lipitsa
The sons of Vsevolod the Big Nest clash in the bloodiest feud

The dispute over Vsevolod the Big Nest's inheritance was settled near Yuryev-Polsky. Men of Novgorod, Smolensk and Rostov under Mstislav the Bold and Konstantin Vsevolodovich routed the armies of his brothers Yuri and Yaroslav. Konstantin won the throne of Vladimir; the chronicles count it among the bloodiest civil battles of Rus'.
Wikipedia (Russian) · Wikipedia (English) · 13th century
Meanwhile around the world (±25 years)
Europe
- 1202 Fibonacci's Liber Abaci — 14 years earlier
- 1204 Sack of Constantinople — 12 years earlier
- 1215 Magna Carta — 1 year earlier
Asia
- 1192–1333 First shogunate in Japan — 24 years earlier
- 1192 Second Battle of Tarain — 24 years earlier
- 1206 Temüjin proclaimed Genghis Khan — 10 years earlier
- 1206 Founding of the Delhi Sultanate — 10 years earlier
- 1219 The Mongols invade Khwarazm — 3 years later
Alive at the time
- Genghis Khan (aged 54)
- Kublai Khan (aged 1)
- Philip II Augustus (aged 51)
- John Lackland (aged 50)
- Francis of Assisi (aged 34)
- Frederick II (aged 22)
- Rumi (aged 9)
- Saint Louis (Louis IX) (aged 2)
- Jayavarman VII (aged 94)
- Fibonacci (aged 46)