She was built in 1896 by Workman, Clark and Company at Belfast, Northern Ireland.

She was the last of the class and cost £62,796, £5 cheaper than her sister ship SS Patroclus.

SS Antenor was transferred in 1914 to Nederlandsche Stoomvaart Maatschappij Oceaan, but later reverted to the British flag.

On 9 February 1918, in the final year of the First World War, she was hit by a torpedo whilst in the Mediterranean.

In 1925 she was sold to Atlantide S. A. per Imprese Marittima of Genoa, Italy and renamed Fortunato.