Tainik (mystikos)

The tainik was a poorly attested court office in the Second Bulgarian Empire, known from a single hagiographical work by Patriarch Euthymius. Its name was probably a Slavonic calque of the Byzantine mystikos and denoted a trusted official close to the tsar. Its precise duties and the period during which the office existed in Bulgaria remain unknown.


The only known reference to Bulgarian tainiks occurs in Patriarch Euthymius’s account of the translation of the relics of St Philothea to Tarnovo. The tsar shares his plan with his “tainiks and princes,” who unanimously encourage him to carry it out. The passage shows that the tainiks belonged to the group with whom the ruler discussed important decisions, but it gives neither the names and rank nor the specific duties of any holder of the office. Modern translations sometimes render the word generically as “counsellor” or “privy counsellor,” although it probably had a narrower institutional meaning.

The word is formed from the common Slavonic root tai-, associated with something hidden or confidential; its deeper etymological connections include meanings such as secret taking and deception. The form tainik is not attested elsewhere with the same official sense. It was most probably a calque—a native word created by translating the component meaning—of the Greek μυστικός (mystikos), meaning “secret” or “privy to a secret.” The close semantic correspondence makes a connection with the Byzantine office very likely, although linguistic similarity alone cannot prove institutional identity.

In Byzantium the mystikos is known from the period of the Macedonian dynasty. Court lists of the ninth and tenth centuries place the office either thirty-first or thirty-seventh, while in late Byzantine lists it normally ranks between twenty-sixth and thirty-first; in the treatise of Pseudo-Kodinos it stands thirtieth. The mystikos was an active official rather than merely the holder of an honorary dignity. His ceremonial costume included a turban and an epilourikon, a type of formal outer garment, but not the skaranikon, a distinctive Byzantine court headdress.

The duties of the Byzantine mystikos cannot be reconstructed with certainty. He has been interpreted as the emperor’s private secretary and sometimes as the head of the imperial chancery. The latter interpretation is disputed because several mystikoi may be found within a single reign, while there is no firm evidence that they drafted imperial acts. A mystikos is nevertheless known to have headed a sekreton, or palace bureau, with judicial responsibilities, allowing the office to be connected with legal administration. Other evidence points to responsibilities for the palace and public treasuries, the payment of salaries, and the management of monastic property. During the Palaiologan period the office probably also played a part in imperial patronage of ecclesiastical institutions. These different indications may reflect changes in its functions over the centuries.

If the Bulgarian tainik truly corresponded to the Byzantine mystikos, he should be understood as a particularly trusted court official, probably associated with the tsar’s chancery and perhaps with the administration of justice. The phrase “tainiks and princes” appears to encompass senior courtiers and dignitaries, but it does not reveal a clear distinction between the two groups. The Byzantine parallel suggests that personal proximity to the ruler could give a tainik influence greater than his formal place in the hierarchy. No Bulgarian rank, distinctive costume, seals, or coins associated with these officials are known. Nor is there sufficient reason to transfer all the legal, financial, and ecclesiastical duties of the Byzantine mystikos automatically to the Bulgarian tainik.

No securely equivalent office is attested in the states neighbouring Bulgaria. The Romanian “logothete of the secret” resembles it in name, but the meagre evidence and the incomplete correspondence between the terms do not establish that they were the same institution. Since the Bulgarian tainik appears in only one literary text, neither the introduction nor the disappearance of the office can be dated. Its chief significance lies in its evidence for the adaptation of Byzantine court models into Slavonic terminology and for the existence of an intimate circle of trusted advisers around the tsar at Tarnovo.