The Abbey of Saint Gall began not as a grand complex but as a hermitage in the valley of the Steinach. The official heritage district traces its origin to 612, when the Irish missionary Gall withdrew to the area. About a century later, the community around his cell developed into a monastery under Abbot Otmar; in 747 it adopted the Rule of Saint Benedict. The story matters because the modern visitor sees a Baroque square, while the institution grew gradually from a small religious settlement into a centre with an unusually long documentary memory.
The abbey’s cultural prominence reached a high point under Abbot Gozbert, whose tenure ran from 816 to 837. Around 820, the Abbot of Reichenau supplied him with a celebrated plan for an ideal Benedictine monastery; Gozbert adapted that concept to St Gall. The parchment drawing, now preserved in the Abbey Library, is the only surviving architectural plan of its kind from that period, according to UNESCO. It is not a map of the buildings that stand today, but a rare record of how medieval thinkers imagined the organization of a monastery.
