[3] Csanád had three brothers: Lawrence I, Nicholas I, ispán of various counties, who fought in the Battle of Rozgony, and Pancras, the father of Thomas Telegdi, also an archbishop of Esztergom.

[6] The entire Telegdi family supported the claim of Charles during the period of Interregnum in the first decade of the 14th century and the subsequent unification war against the oligarchs.

Under his tenure, the restructured royal chapel became a separate diploma issuing institution and place of authentication, which also proved to be a school of highly qualified diplomats and legal staff.

[9] Charles I requested Pope John to marry Elizabeth, the daughter of King Władysław I of Poland, and Telegdi's main task was to negotiate the matter in the Roman Curia.

[11] Telegdi submitted to the Pope the King's request for the confirmation of Andrew Szécsi as the Bishop of Transylvania, despite his young age and deficiency in priesthood.

In addition, of the 11 papal letters issued at the time of his diplomatic mission, 7 dealt with church benefices (for instance, the installment of his nephew Nicholas Vásári to the chapter of Várad).

Upon the request of Csanád Telegdi, Charles I returned the previously lost estates of Tömörkény, Zenta (Senta), Csóka (Čoka), Szanád (Sanad), Varsány and Tarján to his family in the same year.

[14] Under customary law, the cathedral chapter requested Boleslaus of Esztergom to confirm his election, but the archbishop was temporarily incapacitated for some reasons (possibly due to his involvement in the Dalmatian conflict) and handed over the task to his provost Theophil, giving him the rights.

[15] Shortly thereafter his consecration, Telegdi requested Charles on 24 April to revive and confirm the privileges of the Diocese of Eger, which were granted by Stephen V of Hungary in 1271.

[16] Upon his request, Charles forbade Palatine Philip Drugeth, who governed the whole province, where the diocese laid, to arbitrarily confiscate the tithe and other revenues of the bishopric on the next day.

For instance, he represented the interests of Henry, Bishop of Veszprém in February 1327, when the prelate accused Archbishop Boleslaus with unauthorized possession of some churches and their benefices in his diocese (the so-called "trial over the tithes of Sasad").

As a result, Pope John XXII refused to confirm Dörögdi's election despite the fact that the prelate personally visited the papal court at Avignon after some trouble with robber knights during his travel.

[14] According to the bull of Pope John XXII, dated 15 January 1331, he gave Telegdi's pallium to envoys cleric Nicholas of Várad (his nephew) and Benedictine friar Anselm to bring it to Hungary.

[20] To express his gratitude, Telegdi donated the village of Demjén, Heves County to the cathedral chapter of Eger on 3 March 1331, for their assistance in his promotion to the metropolitan seat.

[23] Upon his request, Charles I renewed the privilege of the archdiocese on 15 March 1332, regarding the collection of tithe beyond the Drava river, which right was donated by Béla IV and Stephen V to the archbishopric.

Thereafter Charles I confirmed all privileges of Esztergom on 14 June by transcribing the royal charter of Béla IV, issued in 1262 on the occasion of Philip Türje's appointment.

For instance, when a group of bishops made a complaint to Pope Benedict XII against Charles in 1338, because he had taken possession of Church property, in addition to his ecclesiastical policy, which "would jeopardize their interests", Telegdi did not join their movement and remained loyal to the king.

[9][24] Under his archiepiscopate, the jurisdiction conflict with the Archdiocese of Kraków over the Szepesség region has ended in 1332, when papal legate and provost Prot ruled in favour of Kraków, however Telegdi invoked the privilege granted by Pope Innocent IV in 1254, which made a special order for the application of ecclesiastical punishment against the Archidocese of Esztergom for papal delegates, legates, conservators and executors, or their deputies.

During the trial, in 1333, Telegdi turned to the abbots of Pilis and Zirc for assistance, as the document of 1254 authorized these Cistercian superiors to ensure that the privilege granted to the archbishop was respected.

[24] When the young Louis launched his Neapolitan campaign against his brother's murderer Joanna, Telegdi acted as royal governor (viceroy) in the Kingdom of Hungary between 1347 and 1348.

Telegdi did not seem to be cooperative according to the letter of Pope Benedict XII in August 1339, when the archbishop allegedly refused to present a list of assets previously counted.

[29] Telegdi recovered several lands for his metropolitan seat during his episcopate: for instance, he regained Nezsider (today Neusiedl am See, Austria) in 1332, which Boleslaus had failed years earlier.

[30] Telegdi increased his own wealth simultaneously: Louis I donated the village of Tárnok and its revenues and river duty in Csanád County for his family in April 1343.

[6] Despite the intention of Louis I and Pope Clement VI, Telegdi successfully prevented the establishment of the Diocese of Szepes (Spiš) in 1348 (finally, it was created only three centuries later, in 1776).

[27] Continuing the efforts of his predecessors Thomas and Boleslaus in the previous decades, Telegdi finished the complete restoration and reconstruction of St. Adalbert Cathedral in Esztergom.