During the age of kings, what significant change occurred regarding the church?

The significant change that occurred regarding the church during the age of kings is that the church became established. This period, particularly during the early Middle Ages and into the Renaissance, saw the church solidify its role as a powerful institution within society and governance. Monarchs often aligned themselves with the church, seeking its legitimacy and support in order to bolster their own authority.

As a result, the church not only gained a prominent position in social and political matters but also became a central player in the administration of Europe, influencing laws and policies and often ruling alongside monarchs. This establishment typically involved the church’s doctrines becoming intertwined with state governance, leading to a theocratic influence on kingship and a significant role in the lives of the populace.

In contrast, the other options either imply a weakening or a significant restructuring of the church’s role that does not align with the historical context. The church did not become disbanded, lose all political power, or transition to a democratic form during this era, as those developments arose much later with the Reformation and the Enlightenment. During the age of kings, the church's establishment anchored its authority, defining much of the social and political landscape of the time.