According to the "Chronicle of Andechs" (Donauwörth, 1877, p. 69), Henry, the last count, received the relics from Pope Honorius III and brought them to the Abbey of Andechs.
Frank Kemp Salter is an Australian academic and researcher at the former Max Planck Institute for Behavioral Physiology, Andechs, Germany, best known for his writings on ethnicity and ethnic interests.
The town was among the most influential centers of power for the Bavarian counts of Andechs in the region of Carniola at the time.
Working with his close collaborator Jürgen Aschoff, he had an underground bunker constructed in Andechs, Germany, for use as a laboratory in which human subjects could be shielded from any external time cues, including variations in light, temperature, and electromagnetic fields.
The shape of the future however was made plain with the appointment to this Bavarian abbey in 1189 of Abbot Manegold of Berg, son of the Count of Berg, as the result of political intrigue by the Counts of Andechs, Vögte (lords protectors) of Tegernsee, and Bishop Otto of Freising.
In 955 the abbey was destroyed by the Hungarians, on which occasion Abbot Thiente and six of his monks suffered martyrdom, while the remaining three fled to Andechs with the sacred relics.
The Counts of Dießen-Andechs (~1100 to 1180) obtained territories in northern Dalmatia on the Adriatic seacoast, where they became Margraves of Istria and ultimately Dukes of a short-lived Imperial State named Merania from 1180 to 1248.
In the 12th century, the codex was in the possession of the Andechs-Merania family, and was given to Elizabeth of Hungary either by her mother, Gertrude of Merania, or by her aunt, Saint Hedwig of Andechs.