the palace (palatium) of Chromatius, probably Agrestius
Chromatius, praef. urbi about 248 A.D. The building took its name from
its decoration of glass mosaics representing the heavenly bodies (Acta
S. Sebastiani 20 Ian. p. 629; Mirab. 29), and traces of it were found in
1741 when the church of S. Stefano in Piscinula in the Via dei Banchi
vecchi was destroyed (Mon. L. i. 548
; Jord. ii. 535
; HJ 597-8).