Justinian was a 1,875 GRT cargo ship that was built in 1940 by Nobiskrug Werft, Rendsburg for a Norwegian owner.

She was seized on completion, renamed Karl Christian Lohse and used by a German company.

She was seized by the Allies in May 1945 at Flensburg, passed to the Ministry of War Transport (MoWT) and renamed Empire Conningbeg.

In May 1945, she was seized by the Allies at Flensburg, passed to the MoWT and renamed Empire Conningbeg.

The Code Letters GLFT and United Kingdom Official Number 180647 were allocated.

The Code Letters LLTU were allocated and her port of registry was changed to Oslo.