Patroklos

Patroklos or Gaidouronisi is a small, private island located in the Saronic Gulf, Greece. It is situated about 65 km from Athens and 3 km from Sounion and is part of the Attica region.

In ancient times, the island was known as Patroklou Charax or Patroklou Nesos, after the Ptolemaic admiral Patroclus, who established a fortified base there during the Chremonidean War.In the late Middle Ages, the island was notorious as a haven for pirates. The Byzantine emperor John VIII Palaiologos was nearly captured by Catalan pirates in December 1437, when his ship sought shelter from a storm on the island during his journey to the Council of Ferrara.On 12 February 1944, SS Oria sank in a storm on the south east rocks of Patroklos island with 4,074 killed, mostly Italian military internees.