Field Marshal count Augustin Ehrensvärd was a Swedish military officer, military architect, artist, creator of the Suomenlinna fortress and the Swedish archipelago fleet. He was born in Fullerö Castle, Barkarö and died in the village of Saris, Mynämäki.
In 1747, he was chosen by king Frederick I of Sweden to design and construct a maritime fortress near Helsinki in Finland, then a part of the Kingdom of Sweden. Building the fortress of Sveaborg became a life's work for Ehrensvärd, who kept expanding the island fortress until his death in 1772. Ehrensvärd's design was a low-profile bastion-type fortress that would follow the natural contours of the islands and thus remain inconspicuous to enemy fleets. Many of the constructions in Sveaborg are considered to be architectural masterpieces. Augustin Ehrensvärd was also the commander of the Swedish Archipelago Fleet from 1756 to 1766, and from 1770, until his death in 1772.
Wikipedia https://en.wikipedia.org/wiki/Augustin_Ehrensvärd
Official Website https://www.hamhelsinki.fi/sculpture/ehrensvardin-hauta-j-t-sergel/
Address 39 Suomenlinna B, Suomenlinna 00190, Finland
Coordinates 60°8'39.326" N 24°59'6.505" E