[1] Born to a Serbian family in Sarajevo at the time part of the Bosnia Eyalet in the Ottoman Empire, Marinović moved to neighboring Principality of Serbia as a child.

However, in practice, he became the unofficial Serbian representative in the Kingdom of France, commonly known as the July Monarchy, a state ruled by King Louis Philippe I.

Although formally performing other posts (Secretary of the State Council until 1850), Marinović was, as a special assistant to Ilija Garašanin, in control of the whole network of Serbian political propaganda in the Ottoman Empire.

In 1853, Imperial Russia asked for the dismissal of both Garašanin and his first assistant Marinović for being too close to the Second French Empire and the Paris-based Polish agents of Adam Czartoryski and their representative in Belgrade.

Between 1861 and 1867 Marinović was anew the first aide of Prime Minister Ilija Garašanin and Prince Mihailo Obrenović, during their ambitious policy of forming a wider Balkan alliance and fomenting a general Christian uprising against the Ottomans.

After losing the majority among Liberal deputies in Parliament in 1874, the Marinović cabinet became the first Serbian government to be toppled in the National Assembly and called for new elections.

[3] Their marriage was seen as the continuation of Miša Anastasijević's practice of marrying his daughters off to important decision-makers in the Principality of Serbia thereby securing personal wealth and expanding political influence.