1092 Tzachas, emir of Smyrna, assumes title of emperor.

1093 Murder of Tzachas at instigation of Alexius.

1096 The first crusaders appear at Constantinople.

1097-1098 With the help of the crusaders, Alexius regains Nicæa, Antioch, and the whole of Asia Minor.

1103-1108 War of Alexius with Bohemond, prince of Antioch.

1110-1116 War against the Turks in Asia Minor, ending in many Turkish losses, enabling Alexius to make treaty of peace.

1111 Hostilities of Alexius with Tancred and the crusaders.

1118 Death of Alexius. Joannes Comnenus, his son, succeeds. Failure of conspiracy of Anna Comnena and Nicephorus Bryennius to place latter on throne.

1119 Joannes takes Laodicea and
1120 Sozopolis in campaigns against the Turks.

1122 Great victory of Joannes over the Patzinaks in Macedonia.