When a sovereign surrenders he often comes w/ (many) enchantments.
(1) They don't cost any maintenance;
(2) They can't be cancelled;
(3) Some of them (e.g. Defiled Benediction, Blessing of Restoration, Anointed by Fire...) seems to be disabled but still showing in the hero's list of enchantments;
(4) Tireless March is often one of them and it stacks w/ other Tireless March.
I enjoy having 8 movements, but I'm not sure this is working as intended!