SS Royston Grange was a Houlder Line refrigerated cargo liner steamship that was built in England in 1959.

[4] Hawthorn Leslie (Shipbuilders) Ltd. built Royston Grange in 1959, launching her on 23 June and completing her that December.

[6] Such a division of the superstructure was not unique for ships of her era, e.g. Royal Mail Lines' Magdalena[7] and "Three Graces"[8] Amazon (1959), Aragon (1959) and Arlanza (1960).

At 0540 hrs on 11 May Royston Grange was in the Punta Indio Channel, 35 nautical miles (65 km) southwest of Montevideo, Uruguay, under the direction of an Argentine maritime pilot, in dense fog.

[6] Also in the Punta Indio channel, inbound to the River Plate, was the Liberian-registered tanker Tien Chee carrying 20,000 tons of crude oil.

But Royston Grange's bow struck Tien Chee's port side, rupturing the tanker's number seven wing tank.

On 20 May 1972 their remains, mostly little more than ashes and charred bones, were buried in six urns in two communal graves in The British Cemetery Montevideo.

[14] One of the windows of All Hallows now includes a stained glass panel commemorating all who died aboard Royston Grange.

The master and pilot of Tien Chee probably should not have entered the channel in the first place in the tidal conditions prevailing at the time.

[21] In 1973 the UK's National Physical Laboratory also conducted tank tests to understand the technical circumstances that led to the collision.

[24] In June 1973 in the House of Commons of the United Kingdom, opposition MP John Prescott claimed that Argentina did not comply with an IMCO recommendation that interested parties should be allowed to attend the inquiry into the disaster.

[25] Heseltine also said he was "favourably impressed by the quality of the Liberian Board's findings", and considered that a further inquiry by the United Kingdom would be unlikely to reach different conclusions.