Rodolfo Amedeo Lanciani (2 January 1845 22 May 1929) was an Italian archaeologist, a pioneering student of ancient Roman topography, and among his many excavations was that of the House of the Vestals in the Roman Forum. Lanciani was born in Rome, although some state he was born in Montecelio, now Guidonia Montecelio. He was professor of Roman topography at the Università di Roma from 1878 until 1927. He is known today chiefly for his Forma Urbis Romae (1893 1901) and the Storia degli scavi, a regular summary of Roman excavations that started appearing in 1902. His students included Giulio Giglioli. Together with important British art historians such as Austen Henry Layard he re-edited the original 1843 guidebook to Rome for John Murray.