\f1 \fs22 The construction of Roman, medieval, and modern centers of habitation on top of the ancient Etruscan citi
es has often destroyed all trace of them, or made their complete identification difficult. The majority of them must have had an irregular layout but there are several examples of urban checkerboard plans with the houses arranged in an orderly manner in
square or rectangular blocks. One of the best-known of these is the center of \b \cf4 \ATXht1035 Marzabotto\b0 \cf0 \ATXht0 . Sometimes the \b \cf1 \ATXht14 necropolises\b0 \cf0 \ATXht0 , or cities of the dead, which were situated just outside the built-
up area, were also laid out on to this orthogonal pattern. This is particularly evident in the necropolis of \b \cf4 \ATXht2045 Crocefisso del Tufo\b0 \cf0 \ATXht0 near Orvieto. \par
