This law is noticed by Livy (ii. 8) and Plutarch (in Publiccla, tom. i. p. 187.), and it fully justifies the public opinion on the death of Caesar which Suetonius could publish under the Imperial government. Jure caesus existimatur (in Julio, c. 76.). Read the letters that passed between Cicero and Matius a few months after the ides of March (ad Fam. xi. 27, 28.).