In 1725, he was elected the Grandmaster of the Grand Lodge of Ireland, a post he held for the next six years. All official records of the Grand Lodge of Ireland prior to 1760, and all minute books prior to 1780, have been lost. While Rosse is the first recorded Grand Master of Ireland, the belief that he was Grand Master in 1723 and again in 1730 is from newspaper accounts of the day.
The Hell-Fire Club
A founder member of the Hell-Fire Club, Parsons was a notable Libertine, rebelling against the norms of the day. He wrote the book Dionysus Rising after a trip to Egypt where he claimed to have found Dionysian scrolls looted from the Great Library of Alexandria. After writing his book he founded the Sacred Sect of Dionysus. An offshoot of freemasonry called the Revived Order of Dionysus is in existence in New Orleans, USA, and split due to a belief that Freemasonry is descendant from a pre-Christian cult called Dionysiac Architects. They were inspired by Richard Parsons book, only two copies of which exist to this day.
Adieu and obituary
"The late Earl of Rosse was, in character and disposition, like the humorous Earl of Rochester; he had an infinite fund of wit, great spirits, and a liberal heart; was fond of all the vices which the beau monde call pleasures, and by those means first impaired his fortune as much as he possibly could do; and finally, his health, beyond repair." Parsons died on 21 June 1741 at his home in Molesworth Street Dublin in the parish of St Anne. On his deathbed he received a letter from the vicar of St Anne, the dean of Kilmore “to remind him of his past life, the particulars of which he mentioned, such as profligacy, gaming, drinking, rioting, turning day into night, blaspheming his Maker, and, in short, all manner of wickedness; and exhorting him in the tenderest manner to employ the few moments that remained to him, in penitently confessing his manifold transgressions, and soliciting his pardon from an offended Deity, before whom he was shortly to appear.” Parsons ordered the letter, addressed only to My Lord, to be put into a fresh cover and carried by the dean's own servant to an unusually pious gentleman, the Earl of Kildare. On reading it the very angry Kildare sent the letter to John Hoadly, Archbishop of Dublin, Primate of Ireland, who immediately summoned the dean for his explanation. By the time it was understood what had been done, Parsons was dead. Today's Parsons of Birr Castle are not his direct descendants.
Earl of Rosse, new creation
There was a second creation of the title Parsons, Earl of Rosse in 1806 for the descendants of a junior branch which had settled at Birr, King’s County in the early 17th century instead of New Ross.