A crowd of 400 clapped as slain gangland boss, Eamon Dunne, was hailed as "a top skin."
Eamon Dunne was assassinated in a Dublin pub last week by four gun men. He was shot in the head in front of his distraught 17-year-old daughter at a birthday party.
The North Dublin based drug trafficker is suspected to have ordered more than a dozen murders and was one of the most feared criminal in the State.
His brother, David's eulogy received a round of applause from the congregation as he referred to the gang boss as "a top skin."
"You couldn't ask for a better role model to be honest with you. Ever since I was a young fellow I just wanted to be like him," he said. "If I turn out to be half the man he did, I'll be doing alright."
No mention of his profession or criminal life was mentioned during the ceremony. Some of the Don's criminal associates did not attend the funeral due to the gangland blame games that continue to rage over who set up the murder.
One of the most feared criminals in the county Dunne was said to have organized the murders of not just rivals but also a number of associates who had stepped out of line. Police are continuing to investigate his long list of enemies.
Celebrant at the mass, Monsignor Dermot Clarke said he wanted "a quiet and dignified funeral and to be allowed to bury their son, father and brother in a dignified way".
"Life is precious and we should value it. Some have lost the sense of the sacredness of human life and that is to be regretted."