Royal marriage

From EU3 Wiki

Royal Marriage

A Royal Marriage is a basic diplomatic option. If two realms have somewhat good relations, they are likely to accept such a proposal which ties their both dynasties together. A direct effect is an instant boost to relations, but a Royal Marriage has many possible outcomes, especially concerning succession. Both inheritance, a Personal Union or a War of Succession may be the outcomes of a Royal Marriage. Also a Royal Marriage improves the chances of further diplomatic deals; trade agreements, alliances, vassalisations. There is no limit as to how many Royal Marriages a country can enter, but they are all ended when one of the rulers of the two connected countries dies.