Complex sentence: The surname "Ulrich" spread across Europe during the middle ages largely in devotion to Saint Ulrich, Bishop of Augsburg (c.890-4 July 973) who twice defended Augsburg from hostile attacks by pagan Magyars.
Split into simpler sentences: The surname "Ulrich" spread across Europe during the middle ages. This was largely in devotion to Saint Ulrich, Bishop of Augsburg (c.890-4 July 973) who twice defended Augsburg from hostile attacks by pagan Magyars.