Gaius Suetonius Tranquillus, Caligula 21   (ca. A.D. 98-117):

Opera sub Tiberio semiperfecta, templum Augusti theatrumque Pompei, absolvit.

He [Caligula] completed the public works which had been half finished under Tiberius, namely the temple of Augustus and the theater of Pompeius. (J. C. Rolfe, trans.)