 He thus considered himself the wisest prince who ever had ruled Oldenburg.Jever had been acquired before his ascension, but in 1624 he added Knipphausen and Varel to his lands; thus, in 1647 Delmenhorst was finally united.Through neutrality during the Thirty Years' War and by donating valuable horses to warlord Count of Tilly, Anton Günther protected his dominions from the devastation levied on nearly all other German states.