The Valonian Union, consisting of the Bandorra Kingdom and Dugathan Kingdom, and the Ruzian Union, consisting of the Arglon Kingdom and Hulbark kingdom, were united in 1456 by the Treaty of Quinterra into the Valruzian Kingdom. This was done to withstand pressure from foreign powers. Each of the constituent kingdoms retained control of its own territories, giving the King little more than a nominal title. The King of Bandorra was chosen as ruler to ensure that the nation remained stable and free from dynastic quarrels. This reasoning was due to the fact that he ruled over the smallest of the four kingdoms (at that time what we now call North Bandorra was a part of Zuma) and would not be prone or capable to remove any of the fellow Royal Houses