Municipio I is an administrative subdivision of the municipality of Rome, encompassing the centre of the city. It was first created by Rome's city council on 19 January 2001 and has a president who is elected during the mayoral elections. On 11 March 2013 its borders were modified and it was expanded with the incorporation of part of the abolished Municipio XVII. Since then all the rioni of Rome, which are the city's historic districts, form part of Municipio I together with the localities Delle Vittorie and Eroi.