In April 1783, Delany was appointed Coadjutor to Bishop James Keeffe of the Diocese of Kildare and Leighlin, choosing as his motto
Fortiter et Suaviter.
St. Patrick's College With some relaxation of the
Penal Laws in 1782, many Irish priests including Bishops Keeffe and Delany worked to rebuild churches, monasteries, convents and schools. In 1782 Keeffe and Delany began planning for the establishment of a
tertiary college for the education of both lay students and those studying for the priesthood.
St. Patrick's College was originally planned for Tullow but in the end, had to be situated in Carlow fifteen kilometres away. Keeffe died in 1787 but he was able to witness the beginning of construction. It was left to Bishop Delany and Fr
Henry Staunton of Carlow to get the college finished. For financial reasons, it did not open until 1793, with Staunton as its first president. St. Patrick's, Carlow is the oldest surviving Catholic tertiary college in Ireland preceding
St Patrick's College, Maynooth by two years. In 1784, Delany organized a procession through Tullow for the Feast of Corpus Christi. He also decided to start ringing the
Angelus bell, which hadn't been done for a century. This caused some consternation, with Bishop Keeffe, concerned it would lead to trouble. With the death of Bishop Keeffe in 1787 Bishop Delany was appointed Bishop of Kildare and Leighlin on 17 February 1788. Sometime after 1794, his mother died, leaving him all her property. Delany invested a portion of this property left to him and the interest went to charities. Delany also distributed prayer books to children on the day of their
first communion. He started a circulating library and was responsible for the building of a church in both Tullow (1805) and Mountrath (1810). In 1807 Delany refounded the Congregation of
St. Brigid, the
Brigidine Sisters, and in 1808, the Congregation of
The Brothers of St. Patrick in Tullow, County Carlow. In the convent gardens, Delany planted an oak sapling from Kildare. It is still there today. Today many of the Brigidine communities have an oak tree growing from the seed of an oak tree in Kildare. Bishop Delany died at two in the morning on 9 July 1814. He had been seriously ill for some months and was being cared for by the Brigidine Sisters in their convent. He is buried in his Tullow church. ==Schools Named After Daniel Delany==