Entry (Details):

Full name III 445 = D 733, III 3705 = D 732, V 8073 = D 737, VI 1158 = D 731, IX 1117 = D 734, XI 4781 = D 739, XI 5265 = D 705, D 724, 8808, etc., most Coins; called Fl. Val. Constantius, some Coins. Born 317 Aug. 7 CIL I² 302, Eutr. X 15.2, Soc. II 47 (died in his 45th year), cf. Aur. Vict. Epit. 42.17; in Illyricum Jul. Or. 15D. Son of Constantine I and Fausta II 4844 = D 730, Jul. Or. I 9B, II 51C, Athan. Hist. Ar. 44, 64, de synod. 18.

Present at court 321 March 1 (probably at Serdica) Pan. Lat. X 36.1. Proclaimed CaesariRole name: Caesar 324 Nov. 8 Cons. Const. s.a. 324, CIL I² 276, 302 (not Nov. 13, as AE 1937, 119); proclaimed AugustusiRole name: Augustus 337 Sept. 9 Cons. Const. s.a. 337.

Married in 335 a cousin, daughter of Iulius Constantius 7 Eus. V. Const. IV 49, Jul. Ep. ad Ath. 272D, Athan. Hist. Ar. 69; married a second time, to Eusebia in 353 Jul. Or. III 109A, 110D; married a third time, to Faustina in 361 Amm. XXI 6.4; father of Constantia by Faustina Amm. XXI 15.6, XXVI 7.10, 9.3, XXIX, 6.7. See stemmata 2-3.

Died 361 Nov. 3 Jer. Chron. s.a. 361, Cons. Const. s.a. 361, Amm. XXI 15.3 (wrongly Oct. 5), Aur. Vict. Epit. 42.17, Soc. II 47.4, III 1.1, Soz. V 1.6, Zon. XIII 11.

For further details see P-W IV 1044ff. Coins, in Cohen, VII 435-94.