Latzimestal means “Lords of the World” in Falatacot.
The Latzimestal is the Dericost faction controlled by the generals of the Dericost army. In terms of creatures we see on Dereth, Skeletons and Mu-Miyah are for the most part Latzimestal.
The Latzimestal and the Filinuvekta have warred for ages. The Latzimestal believed that as the generals of Dericost they controlled the true power of the Kingdom, and should be able to rule it as they saw fit - openly as undead. The Filinuvekta were Dericost nobles and the secret leaders of the Ice Throne, and wished to continue to rule their kingdom in secret.