Lazar Lazarević was born on 28 December 1838 in Hotanj Hutovski near Neum, Herzegovina, Ottoman Empire, to his father Andrija and his mother Anđa née Šutalo.

[8] The Catholics of Trebinje-Mrkan became frustrated with the lack of material aid from the new authorities and the inactivity of the new Bishop of Dubrovnik Mato Vodopić.

[9] On 11 June 1887, Lazarević wrote to the Propaganda in Rome again requesting the appointment of the new bishop and protection of Catholics from the new authorities.

[6] In mid 1887, Lazarević also wrote to the Austrian-Hungarian government in Sarajevo about Bishop Buconjić's encroachment in Trebinje-Mrkan but his petition had no positive answer.

Cardinal Luigi Galimberti, the new nuncio in Vienna, started the negotiations with Foreign Minister Count Gustav Kálnoky and presented him with Rampolla's letter.

[12] On 17 June 1889, the Austrian-Hungarian government in Sarajevo and the Joint Ministry of Finance presented their proposal to Galimberti, in which they suggested the Bishop of Mostar-Duvno should administer Trebinje-Mrkan.

[14] The Austrian-Hungarian government also requested the Bishop of Mostar-Duvno, who was an apostolic administrator, should have a regular jurisdiction in Trebinje-Mrkan and that he could appoint Franciscans to priestly duties.

[14] The Propaganda ordered the Bishop of Mostar-Duvno to administer Trebinje-Mrkan on 16 June 1890, a decision confirmed by the Pope on 8 July 1890.

[20] As requested by the canon law, on 19 December 1910, the Metropolitan Archbishop Josip Stadler named Lazarević administrator in spiritual matters of the two Herzegovinian dioceses.

[18] The clergy of Trebinje-Mrkan once again asked for their own bishop and requested Lazarević's appointment, and later that of Anđelko Glavinić's, a parish priest in Trebinje.

[22] After the friction about the candidate for bishop in Mostar, the Austrian-Hungarian authorities officially proposed Rome Mišić to the post for the second time on 5 January 1912.