Flavia Maximiana Theodora was the stepdaughter of Maximian. Her parents were Flavius Afranius Hannibalianus and wife, divorced before 283, Eutropia, later wife of Maximian. Theodora's father was consul in 292, and praetorian prefect under Diocletian. In 293, Theodora married Flavius Valerius Julius Constantius (later known as Constantius Chlorus), after he had divorced from his first wife, Helena, to strengthen his political position. The couple had six children:

Main Roman Coin Book and Other References:

RIC = Mattingly, Harold    The Roman Imperial Coinage
BMC = Coins of the Roman Empire in the British Museum
RSC = Seaby, H A    Roman Silver Coinage
RCV = Sear, David R    Roman Coins and Their Values
Cr = Crawford, Michael    The Roman Republican Coinage
SB = Sear, David R    Byzantine Coins and Their Values
S = Coins of England and the United Kingdom
WW = Wildwinds.com (reference & attribution site)