Complex sentence: Schretzheim I, found in Bayrisch Schwaben, Germany, is silver "bulla" (i.e. an amulet box), dated c. AD 600, a runic inscription reads as "Arogisl (d)", which is the origin of the name "Arbogast".
Split into simpler sentences: Schretzheim I, found in Bayrisch Schwaben, Germany, is silver "bulla" (i.e. an amulet box), dated c. AD 600. The runic inscription reads as "Arogisl (d)", which is the origin of the name "Arbogast".