In the summer of 1848, the revolution broke out. Initially, Wallachian radicals had unsuccessfully attempted to attract Bibescu to their side. They then issued the "Islaz Proclamation" of June 9, 1848. On June 11, Gheorghe Bibescu accepted the proclamation and two days later, abdicated and left the country, leaving it to be ruled by a Provisoral Government which succumbed to Ottoman intervention in September. In 1859, Bibescu was presented as candidate to the throne by the conservatives who opposed Wallachia's union with Moldavia.