Ulla Fersen
· built 1789
HSwMS Ulla Fersen was an 18-gun frigate of the Swedish Navy. Designed by the shipwright Fredrik Henrik af Chapman, she was launched in 1789 and served in the Russo-Swedish War of 1788–1790, most notably at the Battle of Reval. British vessels twice detained her, once in 1798 and again in 1801, with the first event almost resulting in the execution of the Swedish Navy officer Rudolf Cederström by his own government. Ulla Fersen was completely rebuilt in 1802, and lost in a storm in 1807.
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