NOTES: Construction on the Cathedral began in 1099 under the direction of the masterbuilder Lanfranco. It was consecrated in 1184. The Porta Regia was added in 1209-1231 by Anselmo da Campione and his heirs. The lions, probably discovered while digging the foundations, are of Roman age.
NOTES: Constantine I reigned from 25 July 306 AD to 29 October 312 AD. The Palazzo dei Conservatori, which houses part of the Capitoline Museum, was built by Giacomo della Porta in 1564-1575 to the design of 1536 by Michelangelo.