He retired on 10 February 1716 and returned to his estates in East Prussia .
Dohna became the Amtshauptmann of Prussian Holland and took part in the Siege of Stralsund in 1715 .
Dohna retired on 10 February 1716 and returned to Dohna 's estates in East Prussia .
Dohna became the Amtshauptmann of Prussian Holland and took part in the Siege of Stralsund in 1715 .