Dual Monarch
Dual monarchy is a system employed by some kingdoms, whereby votes are split between two provinces. Normally, these provinces are trusted players and/or leaders of the kingdom that can be counted on to be active. Sometimes, these votes are shared between a leader and a large province during wars to create Unbreakables due to the +10% Defense bonus conferred to monarches in War/Hostiles.
The way this system works is that if Province A and Province B are meant to be sharing votes with Province A being the main monarch, then each province would vote for the other, and Province A would ensure that he gathers enough votes on himself to be the monarch. When Province B requires monarchy however, he will switch his vote from Province A to himself and thus gain the monarchy.
However, this may lead to the kingdom page showing 2 monarches present in the kingdom until Province A is updated.