Augustin Ehrensvard was a central figure in the development of Suomenlinna. He was a Swedish military officer and architect and in 1747 he was chosen by King Frederick of Sweden to design a maritime fortress in Helsinki, which was then part of the kingdom of Sweden.
He designed the fortress to follow the natural contours of the island, keeping the buildings low to decrease their visibility from the sea. He worked on the fortress until his death in 1772.
His beautiful tomb, which dominates the Great Courtyard on Suomenlinna, was designed by Gustav III, the king of Sweden. Ehrensvard was held in great esteem by the people of Finland.