Moscow passes to Daniel Alexandrovich
Nevsky's youngest son founds the Principality of Moscow

On Alexander Nevsky's death in 1263 Moscow passed to his youngest son Daniel, then a child. Daniel became the first permanent prince of Moscow and founder of the Moscow branch of the Rurikids; under him the principality gained Kolomna and Pereslavl.
Wikipedia (Russian) · Wikipedia (English) · 13th century
Meanwhile around the world (±25 years)
Europe
- 1241 Mongols in Europe: Legnica and Mohi — 22 years earlier
Middle East
- 1258 Mongol sack of Baghdad — 5 years earlier
Asia
- c. 1251 The Tripitaka Koreana — 12 years earlier
- 1257 Samalas eruption — 6 years earlier
- 1271 Kublai Khan founds the Yuan dynasty — 8 years later
- 1271–1295 Travels of Marco Polo — 8 years later
- 1279 Battle of Yamen: end of the Song — 16 years later
Oceania
- c. 1250 The moai of Easter Island — 13 years earlier
- c. 1280 Polynesians settle New Zealand — 17 years later
Alive at the time
- Kublai Khan (aged 48)
- Alexander Nevsky (aged 42)
- Marco Polo (aged 9)
- Rumi (aged 56)
- Saint Louis (Louis IX) (aged 49)
- Rudolf I (aged 45)
- Thomas Aquinas (aged 38)
- Edward I Longshanks (aged 24)
- Osman I (aged 5)
- Henry III (aged 56)