Complex sentence: This newly created provisional government was headed by Archduke John of Austria as regent ("Reichsverweser"), i.e., as a temporary head of state, and he named August von Jochmus as Foreign Minister and Navy minister.
Split into simpler sentences: This newly created provisional government was headed by Archduke John of Austria as regent ("Reichsverweser"), i.e., as a temporary head of state. Johann named as August von Jochmus as Foreign Minister and Navy minister.