Battle of Yamen: end of the Song
The last Song fleet perishes off Guangdong

The Yuan fleet destroyed the last Southern Song ships at the mouth of the Pearl River. The minister Lu Xiufu leapt into the sea holding the eight-year-old emperor; the Song dynasty ended and all of China came under Mongol rule for the first time.
Wikipedia (Russian) · Wikipedia (English) · 13th century
Meanwhile around the world (±25 years)
Europe
- c. 1300 Onset of the Little Ice Age — 21 years later
Middle East
- 1258 Mongol sack of Baghdad — 21 years earlier
- 1291 Fall of Acre — 12 years later
Oceania
- c. 1280 Polynesians settle New Zealand — 1 year later
Alive at the time
- Kublai Khan (aged 64)
- Marco Polo (aged 25)
- Dante Alighieri (aged 14)
- Rudolf I (aged 61)
- Edward I Longshanks (aged 40)
- Osman I (aged 21)
- Philip IV the Fair (aged 11)
- Philip III the Bold (aged 34)
- Adolf of Nassau (aged 29)
- Albert I (aged 24)