Opole

City · c. 1177 CE · in Europe

Capital of Duchy of Opole (1177–1304).

Warangal (c. 1177 CE): Capital of Kakatiya Dynasty (1177–1323).
Koknese (c. 1180 CE): Capital of Principality of Koknese (1180–1206).
Welshpool (c. 1169 CE): Capital of Kingdom of Powys Wenwynwyn (1169–1209).
Castell Dinas Brân (c. 1169–1215 CE): Capital of Kingdom of Powys Fadog (1169–1215).
Veliko Tarnovo (c. 1188 CE): Capital of Second Bulgarian Empire (1188–1394).
Turov (c. 1188 CE): Capital of Principality of Turov and Pinsk (1188–1240), Principality of Pinsk (1294–1325), Principality of Turov (1294–1325).
Bobovac (c. 1188 CE): Capital of Banate of Bosnia (1188–1377), Kingdom of Bosnia (1385–1460).
Bern (1191 CE): Capital of Helvetic Republic (1799–1803), Swiss Confederation (1848–today).
Sibiu (1191 CE): Capital of Principality of Transylvania (1692–1695).
Nicosia (c. 1192 CE): Capital of Kingdom of Cyprus (1192–1489), Republic of Cyprus (1961–today).

Around the same time and place

Magna Carta (1215 CE): Charter agreed by King John at Runnymede that limited royal power and became a foundation of constitutional law in the English-speaking world.
University of Paris (c. 1150 CE): Emerging around 1150 from the schools of Notre-Dame, the University of Paris became a leading centre of theology and philosophy in medieval Europe. Its college of the Sorbonne, founded in 1257, gave the university its popular name.
Notre-Dame de Paris (1163 CE): Gothic cathedral on the Île de la Cité, begun in 1163, famous for its flying buttresses, rose windows and sculpture.
Francis of Assisi (c. 1181 CE – 1226 CE): Italian friar who embraced radical poverty and founded the Franciscan Order; one of the most venerated saints of Christianity.
Sack of Constantinople (1204) (1204 CE): Armies of the Fourth Crusade sacked Constantinople and set up a Latin Empire, permanently weakening Byzantium.
Thomas Aquinas (1225 CE – 1274 CE): Dominican friar and theologian whose Summa Theologica synthesised Aristotelian philosophy with Christian doctrine.
Trier (16 BCE – 1618 CE): Capital of Electorate of Trier (1333–1618).
Hildegard of Bingen (1098 CE – 1179 CE): German Benedictine abbess, composer, visionary writer and naturalist, one of the best-known composers of medieval sacred music.