L. BosmanLex Bosman is Professor of Architectural History at the University of Amsterdam, with a special interest in Early Christian and Medieval Architecture. He has been a fellow of the Royal Netherlands Institute in Rome and Scholar in Residence at the Isttuto Universitario Olandese di Storia dell'Arte in Florence. He is the author of many publications, including The Power of Tradition: Spolia in the Architecture of St. Peter's in the Vatican (2004). Read More Read Less