Jambi

City · 1401 CE · in Southeast Asia

Capital of Sultanate of Jambi (1670–1904).

Uppsala (c. 1402 CE): Capital of Kalmar Union (1402–1436).
Roskilde (c. 1402 CE): Capital of Kalmar Union (1402–1443).
Belgrade (c. 1402 CE): Capital of Serbian Despots (1402–1421), Kingdom of Serbia (1882–1884), Yugoslavia (1919–1945), and 2 more.
Shuntian Fu (1403–1914 CE): Capital of Ming Dynasty (1421–1644), Qing Dynasty (1645–1911).
Malacca (1396 CE): Capital of Sultanate of Malacca (1459–1511).
Diyarbakir (c. 1407 CE): Capital of Aq Qoyunlu (1407–1468).
Iasi (1408 CE): Capital of Principality of Moldavia (1564–1858), United Principalities of Moldavia and Wallachia (1859–1862).
Cirebon (1389 CE): Capital of Sultanate of Cirebon (1482–1676).
Suceava (1388 CE): Capital of Principality of Moldavia (1388–1564).
Bidar (c. 1425 CE): Capital of Bahmani Sultanate (1425–1491), Bidar Sultanate (1527–1618).

Around the same time and place

Majapahit Empire (c. 1293–1527 CE): Hindu-Buddhist thalassocracy based in eastern Java at Trowulan, which reached its height in the 14th century under Hayam Wuruk and his minister Gajah Mada.
Malacca Sultanate (c. 1400–1511 CE): Sultanate founded by Parameswara around 1400 that became the leading entrepôt of the Strait of Malacca and helped spread Islam through the archipelago.
Phnom Penh (1372 CE): Capital of Kingdom of Cambodia (1956–today), People's Republic of Kampuchea (1979–1989).
Trowulan Temple (c. 1294–1518 CE): Capital of Majapahit (1294–1518).
Mukim Kota Batu (c. 1368 CE): Capital of Sultanate of Brunei (1368–1888).