He was born on October 21st in Kragujevac. He was a Prince of Serbia and was the first heir to the throne of the Royal House Obrenovic.
Prince Milan was the elder son of Prince Milos I Obrenovic and Princess Ljubica, and was the brother of Prince Mihailo.
Though he was sickly all his life and did not have a regular systematic education, he managed to partially build up certain political views and opinions. However the diseases of tuberculosis prevent him from self- development and from being more active. He came to the throne following the abdication of Prince Milos (13thJune) and ruled until his death on 8 July 1839. Due to his own illness and the opposition of the Council of Regency he did not have a chance to sign a single document as a prince. He entered into the history of the Serbs being a ruler with the shortest period of regency (25 days).