30 May] 1903) was a cavalry lieutenant of the Royal Serbian Army and a brother of Draga Mašin, the Queen consort of King Aleksandar Obrenović of the Kingdom of Serbia.

[1] Nikodije was the grandson of Nikola Lunjevica, a relative of Princess Ljubica of Serbia and a close comrade of her husband Prince Miloš.

After the marriage of his sister Draga to King Alexander Obrenović, Nikodije and his brother Nikola were quickly promoted through the officer ranks of the Serbian Army.

[5] During the night of the May Coup (10-11 June 1903), both Alexander and Draga were murdered in the royal palace in Belgrade by Serbian army officers.

[7] Because of all the previous humiliations of the army and the people, from the moment of the arrest until the execution, Tankosić addressed Nikodije and Nikola ironically with "Your Highness".