Pietro Rosa (November 10, 1810, Rome – August 15, 1891, Rome) was an Italian architect and topographer. He studied the settlements of the ancient Roman countryside and carried out a systematic series of excavations on the Palatine Hill in Rome.
A student of Luigi Canina, Rosa was an avid scholae of Rome and Latium. From 1861-1870 he carried out his excavations on the Palatine with the patronage of emperor Napoleon III. He also edited the Carta topografica del Lazio, an archaeological plan that he designed between 1850 and 1870 on a scale of 1:20,000. The map, measuring 3,40 x 3,10 m, is a unique and valuable study of the territory of Latium (modern Lazio) and the archaeological remains there. The work was completed only in certain areas, such as the Tyrrhenian coast, Tibur and Palestrina.
Rosa was named archaeological superintendent at Rome by royal decree on March 26, 1871. In the following years he was inspector general of antiquities in the ministry of public instruction and he was made a senator on December 1, 1870.
- cf. L’archivio della Direzione generale delle Antichità e Belle Arti, Inventario a cura di Matteo Musacchio (Archivio Centrale dello Stato), Roma 1994, Vol. I, pp. 45–51, p. 104.
- M. A. Tomei, Scavi francesi sul Palatino, Roma 1999, pp. 1–19.
- On The Carta topografica del Lazio, see A.P. Frutaz, Le carte del Lazio, Vol. I, Roma 1972, pp. 132 –1.
- E. Gatti, "Il ritrovamento della carta archeologica del Lazio di Pietro Rosa," Bullettino della Commissione Archeologica Comunale LXXXII (1970-1971), pp. 143–145.