Ice Lord was the higher caste of the Ice Warriors. (COMIC: Descendance)
While in a 23rd century museum on Deimos, Tamsin Drew pointed out an Ice Lord wearing traditional Ice Warrior burial regalia. (AUDIO: Deimos)
Isskar was once promoted to the rank of Ice Lord, and the Fifth Doctor detected this based on his appearance alone. (AUDIO: [[The Judgement of Isskar (audio story) ]])