Very little is known of the early bishopric during the Migration Period, and the legendary Saint Maximus of Salzburg is the only abbot-bishop known by name.
Väga vähe on teada varajasest piiskopkonnast Suure rahvasterändamise ajal ja legendaarne Püha Maximus Salzburgist on ainus nime järgi tuntud abt-piiskop.