Charles (1866-1914) works to provide Romania with efficient administration.

In July 1866, the principality gains a new constitution that establishes a bicameral legislature, gives the prince power to veto legislation, proclaims equality before the law, and contains guarantees of freedom of religion, speech, and assembly.

Most of the constitution's civil-rights provisions, however, are not enforced, and it extends voting rights only to the landed aristocracy and clergy.

The document also limits naturalization to Christians, a measure aimed at denying civil rights to Jews living in or migrating to the principality.

The Romanian Orthodox Church becomes the official state religion.

Charles, a Roman Catholic, pledges to raise his successor in the Romanian Orthodox Church.