Nelson Star was a 7,365 GRT refrigerated cargo liner that was built in 1942 for the Ministry of War Transport (MoWT).

[3] The engine was built by Harland and Wolff but was a Burmeister & Wain design from Denmark.

[2] Empire Castle was built for the MoWT, who appointed Federal Steam Navigation Co Ltd to manage her.

[5] In 1944 management of Empire Castle was transferred to Blue Star Line.

[6] In May 1961 Patagonia Star was sold to Gregory Maritime Ltd, London and renamed Eirini.

On 31 July 1971, Byzantium sailed for Puerto Santa Maria, where scrapping by Desguaces y Recuperaciones del Sur SL began on 17 August.