End of the 10th century: emergence of the Dalassenoi family
995-998: Damianos Dalassenos, patriarch of the family, serves as doux of Antioch
1024/1025: Constantine Dalassenos, son of Damianos, is appointed doux of Antioch
1028: Constantine VIII decides to marry Constantine Dalassenos to Zoe and appoint him successor to the throne but changes his decision in favor of Romanos Argyros
1030: Constantine Dalassenos takes part in the campaign of emperor Romanos III Argyros to Syria
1034: exile and incarceration of Constantine Dalassenos by John Orphanotrophos
1038/1039: systematic prosecutions of members of the Dalassenoi family by John Orphanotrophos
1041: Michael V Kalaphates forces Constantine Dalassenos to become a monk
1042: Constantine Dalassenos is a candidate for the imperial throne for a second time but empress Zoe finally chooses Constantine Monomachos
1st half of the 11th century: The Dalassenoi become relatives to the families of the Doukes and Komnenoi
1062-1063: Theodore Dalassenos is mentioned as proedros and doux of Thessaloniki and Serres
1073: Damianos Dalassenos is mentioned as doux of Skopje
1090- ca. 1093: Constantine Dalassenos, a relative of emperor Alexios I, fights against emir Tzacha as the commander of the naval forces of the empire
Beginning of the 12th century: The Dalassenoi renew their family bonds with the Komnenoi dynasty
ca. 1138: John Dalassenos bears the title of kaisaras
1143: Conspiracy of John Rogeros against Manuel I Komnenos
Beginning of the 13th century: The prestige of the Dalassenoi family begins to wane