Guimarães

City · c. 1139 CE · in Europe

Capital of County of Portugal (1139–1143).

Plock (c. 1139 CE): Capital of Duchy of Masovia (1139–1351).
Sandomierz (c. 1139 CE): Capital of Duchy of Sandomierz (1139–1304).
Poznań (c. 1139 CE): Capital of Duchy of Greater Poland (1139–1304).
Mosul (c. 1139 CE): Capital of Zengid dynasty (1139–1250), Qara Qoyunlu (1375–1467).
Tinmel (c. 1139 CE): Capital of Almohad Caliphate (1139–1269).
Rabat (1146 CE): Capital of Morocco (1670–today).
Coimbra (c. 1147 CE): Capital of Kingdom of Portugal (1147–1256).
Halych (c. 1147 CE): Capital of Principality of Halych (1147–1199), Halych-Volhynia occupation (1199–1240), Principality of Galicia-Volhynia (1202–1240), and 1 more.
Paterna del Campo (c. 1147 CE): Capital of Taifa of Tejada (1147–1150).
Vaduz (1150 CE): Capital of Principality of Liechtenstein (1806–1814).

Around the same time and place

Council of Clermont (1095 CE): Pope Urban II called on Western Christians to aid Byzantium and take Jerusalem, launching the First Crusade.
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.
University of Oxford (c. 1096 CE): Teaching existed at Oxford by 1096, making it the oldest university in the English-speaking world. It grew rapidly after Henry II barred English students from the University of Paris in 1167.
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.
Trier (16 BCE – 1618 CE): Capital of Electorate of Trier (1333–1618).
El Cid (c. 1043 CE – 1099 CE): Castilian knight Rodrigo Díaz de Vivar, who fought for Christian and Muslim rulers and conquered Valencia in 1094; hero of the Cantar de mio Cid.
Santiago de Compostela (c. 1111 CE): Capital of Kingdom of Galicia (1111–1125).