On paper, Sveaborg was a well-prepared fortress. Its garrison numbered 6,000 troops, with 700 cannon and substantial stores. Russian forces besieged it, and the fortress surrendered in May 1808. The capitulation cost Sweden the main body of its archipelago fleet as well as supplies and munitions.
Notable Point ยท 53:58-54:48
Sveaborg's surrender costs Sweden much of its archipelago fleet
Sveaborg's fall surrendered naval vessels and military stores along with a fortress nominally defended by 6,000 troops and 700 cannon.