Tremp

City · c. 1040 CE · in Europe

Capital of County of Pallars Jussà (1040–1191).

Nishapur (c. 1040 CE): Capital of Great Seljuk Empire (1040–1194).
Ronda (c. 1040 CE): Capital of Taifa of Ronda (1040–1065).
Hamadan (c. 1040 CE): Capital of Great Seljuk Empire (1040–1194).
Silves (c. 1040 CE): Capital of Taifa of Silves (1040–1063).
Morfil (c. 1040 CE): Capital of Takrur (1040–1235).
Yinchuan (c. 1038 CE): Capital of Western Xia (1038–1226).
Yangon (1035 CE): Capital of Burma (1948–1989), Union of Myanmar (1990–2005).
Algeciras (c. 1035 CE): Capital of Taifa of Algeciras (1035–1058).
Oslo (1048 CE): Capital of Kalmar Union (1402–1523), Denmark-Norway (1536–1814), Kingdom of Norway (1814–today).
Ouagadougou (1050 CE): Capital of Burkina Faso (1961–today).

Around the same time and place

Reconquista (718–1492 CE): Centuries-long series of campaigns by Christian kingdoms to take the Iberian Peninsula from Muslim rule, ending with the fall of Granada in 1492.
William the Conqueror (c. 1028 CE – 1087 CE): Duke of Normandy who conquered England in 1066 and became its first Norman king.
Battle of Hastings (1066 CE): William, Duke of Normandy, defeated and killed King Harold II, beginning the Norman conquest of England.
Trier (16 BCE – 1618 CE): Capital of Electorate of Trier (1333–1618).
Bruges (c. 990 CE): Capital of County of Flanders (990–1384).
Le Mans (c. 990 CE): Capital of County of Maine (990–1481).
Blois (c. 990 CE): Capital of County of Blôis (990–1401).
Rodez (c. 990 CE): Capital of County of Rouergue (990–1065).