The head of state of Theodorous and the Parathalassias is currently the Prince, but has historically held other titles. The following is a list of such historic heads of state, from the principality's foundation to the modern day.
List
Princes (1328-1455)
| Name |
Reign
|
| Demetrius I |
1328-1353
|
| Demetrius II |
1353-1398
|
| Isaac I |
1398-1427
|
| Evangelus I |
1427-1455
|
Emperors (1455-1484)
| Name |
Reign
|
| Isaac II |
1455-1471
|
| Alexander I |
1471-1484
|
Princes (1484-1559)
| Name |
Reign
|
| Alexander II |
1484-1501
|
| Joseph I |
1501-1508
|
| Anastasius I |
1508-1543
|
| Isaac III |
1543-1559
|