Tripoli

City · c. 1111 CE · in Europe

Capital of County of Tripoli (1111–1289).

Santiago de Compostela (c. 1111 CE): Capital of Kingdom of Galicia (1111–1125).
Minsk (c. 1111 CE): Capital of Principality of Minsk (1111–1313), Republic of Belarus (1992–today).
Halebidu (c. 1111 CE): Capital of Hoysala Kingdom (1111–1343).
Inowroclaw (1120 CE): Capital of Duchy of Kuyavia (1188–1205).
Navahrudak (1100 CE): Capital of Grand Duchy of Lithuania (1236–1449).
Tarsus (c. 1099 CE): Capital of Armenian Kingdom of Cilicia (1099–1374).
Huining (1124–1173 CE): Capital of Great Jin (1126–1153).
Rostov Veliky (c. 1125 CE): Capital of Principality of Rostov-Suzdal (1125–1240), Principality of Vladimir-Suzdal (1294–1389).
Troyes (c. 1125 CE): Capital of County of Champagne (1125–1200).
Ryazan (1095 CE): Capital of Principality of Ryazan (1097–1240), Ryazan (1453–1520).

Around the same time and place

First Crusade (1096–1099 CE): Answering Pope Urban II’s call, armies of western knights marched to Constantinople, crossed Anatolia, took Antioch after a long siege and captured Jerusalem in July 1099, founding the crusader states.
Abbasid Caliphate (750–1258 CE): The Abbasid dynasty, descended from Muhammad's uncle, took the caliphate from the Umayyads and ruled from Iraq, presiding over the Islamic Golden Age.
Battle of Manzikert (1071 CE): The Seljuk sultan Alp Arslan defeated and captured the Byzantine emperor Romanos IV Diogenes, opening Anatolia to Turkish settlement.
Knights Templar (c. 1119–1312 CE): Hugues de Payens and fellow knights founded this military order in Jerusalem around 1119 to protect pilgrims, with headquarters on the Temple Mount. It grew rich and powerful until Pope Clement V dissolved it in 1312 under pressure from Philip IV of France.
Saladin (c. 1137 CE – 1193 CE): Kurdish founder of the Ayyubid dynasty who became sultan of Egypt and Syria, defeated the crusaders at Hattin and retook Jerusalem in 1187.
Palmyra (c. 261–1929 CE): Capital of Palmyrene Empire (261–269).
Sivas (c. 1094 CE): Capital of Danishmendids (1094–1178).
Iznik (c. 1094 CE): Capital of Sultanate of Rum (1094–1307), Nicaean Empire (1206–1261).