Christian IV had profited greatly from his policies in northern Germany (Hamburg had been forced to accept Danish sovereignty in 1621, and in 1623 the Danish heir apparent was made Administrator of the Prince-Bishopric of Verden.
Cristian IV sacara abundante proveito das súas políticas no norte de Alemaña (Hamburgo fora forzada a aceptar o protectorado dinamarqués en 1621, e en 1623 o herdeiro de Dinamarca foi nomeado bispo de Bremen-Verden).