formerly known as Vladika Danilo II, decided to renounce his ecclesiastical position as prince-bishop and married. The first Montenegrin constitution was proclaimed in 1855, known as "Danilo's Code". After centuries of theocratic rule, this turned Montenegro into a secular principality.

Grand Voivode Mirko Petrovic, elder brother of Danilo I, led a strong army of 7,500 and won a crucial battle