The Alexiad () is a medieval historical and biographical text written around the year 1148, by the Byzantine princess Anna Komnene, daughter of Emperor Alexios I Komnenos. It was written in a form of artificial Attic Greek. Anna described the political and military history of the Byzantine Empire during the reign of her father, thus providing a significant account on the Byzantium of the High Middle Ages. Among other topics, the Alexiad documents the Byzantine Empire's interaction with the Crusades and highlights the conflicting perceptions of the East and West in the early 12th century. It does not mention the schism of 1054 – a topic which is very common in contemporary writing. Nevertheless it successfully documents firsthand the decline of Byzantine cultural influence in both eastern and western Europe, particularly in the West's increasing involvement in its geographic sphere. Structure The book is divided into 15 books and a prologue. Its scope is limited to the duration of Alexios' reign, which it is thus able to depict in full detail, especially regarding political relations between the Byzantine Empire and western European powers. 1. Attacks against the Byzantine empire by the Normans, under their leader Robert Guiscard (Books 1–6): Book 1 addresses Alexios' becoming general and Domestikos ton Scholon. It also discusses the Normans' preparation for their invasion. Book 2 addresses the Komnenian revolt. Book 3 addresses Alexios as Emperor (1081), the internal problems with Doukas family, and the Normans' crossing the Adriatic Sea. Book 4 addresses war against the Normans (1081–1082). Book 5 also addresses war against the Normans (1082–1083), and their first clash with the "heretics". Book 6 addresses the end of war against the Normans (1085) and the death of Robert Guiscard. 2. Byzantine relations with the Turks (Books 6–7, 9–10, and 14–15): Book 7 addresses war against the Scythians (1087–1090). Book 9 addresses operations against Tzachas and the Dalmatians (1092–1094), and the conspiracy of Nicephorus Diogenes (1094). Book 10 addresses war against the Cumans and the beginning of the First Crusade (1094–1097). Book 14 addresses Turks, Franks, Cumans, and Manicheans (1108–1115). Book 15 addresses the last expeditions — The Bogomils — Death of Alexios (1116–1118). 3. Pecheneg incursions on the northern Byzantine frontier (Books 7–8): Book 8 addresses the end of the Scythian war (1091) and plots against the Emperor. 4. The First Crusade and Byzantine reactions to it (Books 10–11): Book 11 also addresses the