TSMS Lakonia was a passenger ship, launched in 1929 for Netherland Line as the ocean liner Johan van Oldenbarnevelt. In 1962 she became the Greek Line cruise ship TSMS Lakonia. On 22 December 1963 she caught fire at sea and on 29 December she sank. 128 people were killed in the disaster. In the 1930s Johan van Oldenbarnevelt's regular route was between Amsterdam and the Dutch East Indies. She served in the Second World War as an Allied troop ship. She was refitted several times and latterly became a cruise ship.