Offa of Mercia - Coinage

Coinage

At the start of the eighth century, sceattas were the primary circulating coinage. These were small silver pennies, which often did not bear the name of either the moneyer or the king for whom they were produced. To contemporaries these were probably known as pennies, and are the coins referred to in the laws of Ine of Wessex. This light coinage (in contrast to the heavier coins minted later in Offa's reign) can probably be dated to the late 760s and early 770s. A second, medium-weight coinage can be identified before the early 790s. These new medium-weight coins were heavier, broader and thinner than the pennies they replaced, and were prompted by the contemporary Carolingian currency reforms. The new pennies almost invariably carried both Offa's name and the name of the moneyer from whose mint the coins came. The reform in the coinage appears to have extended beyond Offa's own mints: the kings of East Anglia, Kent and Wessex all produced coins of the new heavier weight in this period.

Some coins from Offa's reign bear the names of the archbishops of Canterbury, Jaenberht and, after 792, Æthelheard. Jaenberht's coins all belong to the light coinage, rather than the later medium coinage. There is also evidence that coins were issued by Eadberht, who was bishop of London in the 780s and possibly before. Offa's dispute with Jaenberht may have led him to allow Eadberht coining rights, which may then have been revoked when the see of Lichfield was elevated to an archbishopric.

The medium-weight coins often carry designs of high artistic quality, exceeding that of the contemporary Frankish currency. Coin portraits of Offa have been described as "showing a delicacy of execution which is unique in the whole history of the Anglo-Saxon coinage". The depictions of Offa on the coins include a "striking and elegant" portrait showing him with his hair in voluminous curls, and another where he wears a fringe and tight curls. Some coins show him wearing a necklace with a pendant. The variety of these depictions implies that Offa's die-cutters were able to draw on varied artistic sources for their inspiration.

Offa's queen, Cynethryth, was the only Anglo-Saxon queen ever named or portrayed on the coinage, in a remarkable series of pennies struck by the moneyer Eoba. These were probably derived from contemporary coins from the reign of the Byzantine emperor Constantine VI, who minted a series showing a portrait of his mother, the later Empress Irene, though the Byzantine coins show a frontal bust of Irene rather than a profile, and so cannot have been a direct model.

Around the time of Jaenberht's death and replacement with Æthelheard in 792-3, the silver currency was reformed a second time: in this "heavy coinage" the weight of the pennies was increased again, and a standardised non-portrait design was introduced at all mints. None of Jaenberht's or Cynethryth's coins occur in this coinage, whereas all of Æthelheard's coins are of the new, heavier weight.

There are also surviving gold coins from Offa's reign. One is a copy of an Abbasid dinar struck in 774 by Caliph Al-Mansur, with "Offa Rex" centred on the reverse. It is clear that the moneyer had no understanding of Arabic as the Arabic text contains many errors. The coin may have been produced in order to trade with Islamic Spain; or it may be part of the annual payment of 365 mancuses that Offa promised to Rome. There are other Western copies of Abbasid dinars of the period, but it is not known whether they are English or Frankish. Two other English gold coins of the period survive, from two moneyers, Pendraed and Ciolheard: the former is thought to be from Offa's reign but the latter may belong either to Offa's reign or to that of Coenwulf, who came to the throne in 796. Nothing definite is known about their use, but they may have been struck to be used as alms.

Although many of the coins bear the name of a moneyer, there is no indication of the mint where each coin was struck. As a result the number and location of mints used by Offa is uncertain. Current opinion is that there were four mints, in Canterbury, Rochester, East Anglia and London.