Toma Jederlinić (29 September 1798 – 11 August 1855) was a Croatian prelate of the Catholic Church who served as the bishop of Dubrovnik and the apostolic administrator of Trebinje-Mrkan from 1843 to his death in 1855.
Jederlinić unsuccessfully tried to get the Austrian diplomacy to receive a ferman from the Ottoman central government to allow the Jesuits to work there.
[10] Barišić asked the Ottoman authorities to gain control over the whole of Herzegovina, including the Diocese of Trebinje-Mrkan.
[11] Rizvanbegović's physician, Jure Kačić, briefly informed Maslać of Barišić's intention in a letter from 22 January 1846.
The clergy of Trebinje-Mrkan was disturbed by the news and had a meeting some 15 days later and voiced their opposition to Barišić's intentions in a letter to Jederlinić.
The Franciscans became displeased and threatened Kačić to sue him before the regional Dalmatian government in Zadar, Austria.
[12] Jederlinić, after receiving the two letters from Kačić, informed Rizvanbegović via Maslać that any unification of the dioceses is impossible without explicit order of the Holy See and the Austrian Emperor.
Expressing his personal opinion, Jederlinić wrote that he also could not accept the unification of the dioceses without an order from the Holy See.
Jederlinić also wrote to Barišić to explain the matter since "he also knows very well that he cannot establish, unify or abolish a diocese without the explicit and special order of the Holy See".
Hajrudin Pasha met with Maslać and expressed his disagreement with the Diocese of Trebinje-Mrkan being controlled by a bishop from Austria.
[14] Due to the opposition from the Ottoman authorities, Jederlinić was unable to make any official visitations to the Diocese of Trebinje-Mrkan.
[15] Jederlinić died in his residence, the House of Kaboga, in the Poljane neighbourhood of Dubrovnik[16] and is buried in the Jesuit church of St.