This map illustrates the 'Diocesis Hispaniarum,' highlighting its ecclesial metropolitan sees and their suffragan dioceses, as detailed by Frederick Meyrick in his book, 'The Church in Spain.' The map also includes the province of Balearica.
The Balearic Islands were detached from Tarraconensis in the 4th century as the independent province of Hispania Balearica, becoming the seventh province within the Diocese of Hispania.
History
The Roman Empire was initially divided into 46 provinces, which were subdivided by Diocletian around 300AD into 101 provinces, which in turn were grouped into 12 dioceses. At the division of the Empire in 395, the structure was changed into four prefectures, 15 dioceses and 119 provinces. With the conquest of Hispania by the Vandals, Alans, and Suebi in 409, the diocese began to collapse.
As found in the Notitia Dignitatum. Provincial administration reformed and dioceses established by Diocletian, c.293. Permanent praetorian prefectures established after the death of Constantine I. Empire permanently partitioned after 395. Exarchates of Ravenna and Africa established after 584. After massive territorial losses in the 7th century, the remaining provinces were superseded by the theme system in c.640–660, although in Asia Minor and parts of Greece they survived under the themes until the early 9th century.
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