During the reconstruction of St. Sixtus' in 1727 and 1728, the pontiff visited the Irish Dominicans once a week, taking part in their community exercises, becoming familiar with the friars and especially with Burke.
He was gradually promoted to the highest theological honours of the order, being charged successively with all the official duties in a regular Dominican studium.
This order did not reach Ireland from Rome in time for the provincial chapter which was convened the following year at Dublin, and to which assembly Father Burke had been elected by his brethren as Definitor.
The author gave to it four years of incessant labour, and in 1772 he added a "Supplementum" which was a vindication of Rinuccini, the nuncio of Pope Innocent X, of the charges brought against him by the supreme council of Confederate Catholics during his residence in Ireland.
Question of the oath of allegiance and fear of subverting "that fidelity and submission which we acknowledge ourselves to owe from duty and from gratitude to his Majesty King George III" caused seven of the Irish Bishops to condemn the "Hibernia Dominicana" and "Supplementum".
"Promptuarium dogmatico canonico morale", a work of the celebrated Spanish Dominican Larrago, enlarged and accommodated to its day by Father Burke, was about to be published in 1753 when his appointment as historian interrupted it.