Definition of "sesterce"

Among the people (of Rome) beſide x. modij of corne, & as many pints of oyle, he diſtributed & dealt 300 Seſterces alſo by the poll, vvhich hee had in times paſt promiſed, vvith an overdeale of 100. a peece to boote, for time.

1606, C[aius, i.e., Gaius] Suetonius Tranquillus, “The Historie of Caius Iulius Cesar Dictator”, in Philemon Holland, transl., The Historie of Twelve Cæsars Emperours of Rome. […], London: […] [Humphrey Lownes and George Snowdon] for Matthew Lownes, section 38, page 16

Nonius the senator hath a purple coat as stiff with jewels as his mind is full of vices; rings on his fingers worth 20,000 sesterces […]

1624, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy: […], 2nd edition, Oxford, Oxfordshire: Printed by John Lichfield and James Short, for Henry Cripps, partition II, section 3, member 3

For him I must convert one of my sheep or goats to sesterces and slaughter another for his entertainment.

1985, Anthony Burgess, Kingdom of the Wicked