Five recensions of the work of Ekkehardus are known. In the first, written between 1098 and 1099, the history ends with the first crusade. The earlier part of this recension is lost; the only manuscript containing it (Karlsruhe) begins with the year 1057. After his pilgrimage to Jerusalem Ekkehardus in the second recension rewrote the history of the first crusade, besides making many other changes, and continued the history to 1106 (in later manuscripts continued to 1125) The autograph manuscript containing the history to 1106 is in the library of the University of Jena. The third recension is the Chronicon imperatorum ab origine Francorum ad annum 1114, written upon request of the Emperor Heinrich V; the only manuscript containing it is the author's autograph copy (in the library of the University of Cambridge). The fourth recension, in which Ekkehardus made use of Sigebert's chronicle, is based on the second; the history of the crusade is placed by itself at the end of the chronicle. In the final recension the universal history is divided into five books; the Historia Alexandri Magni, Gothorum, Hunorum [etc.] is omitted; the history of the first crusade forms a book by itself under the title: Hierosolimita ... seu Libellus de expugnatione hierosolimita. In the later manuscripts of this recension the history includes the year 1125. The Historia Alexandri Magni, Gothorum, Hunorum, Francorum, Langobardorum, Saxonum et Mathildis reginae exists separately in manuscript, but has never been published. The history of the first crusade exists also separately in manuscript, and has been published by Mart̀ene & Durand, Waitz and others.