Lokrum (pronounced [lɔ̌krum], Italian: Lacroma) is an island in the Adriatic Sea 600 metres (1,969 feet) from the city of Dubrovnik, Croatia.
On the island's highest point at 96 metres (315 feet) above sea level stands Fort Royal Castle, which was built by the French during Napoleon's occupation of Croatia, though it was later named "Maximilian's Tower" by the Austrians.
According to legend, Richard the Lionheart was shipwrecked in 1192 after returning home from the crusades and was cast safely ashore on Lokrum.
Archduke Maximilian Ferdinand of Habsburg had a mansion built on the island in 1859 with a magnificent garden laid out, criss-crossed with pathways, full of amazing plants and botanical wonders.
After the Emperor Maximilian's execution the island was surrendered to the Habsburg Family in a deal struck between Franz Joseph I of Austria and Leopold II of Belgium.
The island was given to Archduchess Elisabeth Marie of Austria as part of her marriage dowry; Yugoslavia claimed it under the Treaty of Saint-Germain.
In 1959 a Botanical Garden was founded on Lokrum which contains native and imported, tropical and subtropical plants, and other vegetation originating in Australia and South America.
On the southern part of the island there is a small salt lake, 10 m deep, known as "the Dead Sea" (Mrtvo More).
The Dead Sea is a small salt lake located on the southern side of the Island of Lokrum.
Fort Royal is a military emplacement located on the highest peak of Lokrum overlooking Dubrovnik.