His son told mourners that his father's death has "left a huge void in our lives that will never be filled again"
The funeral of Bobby Messett, who was killed in the shooting at Bray Boxing Club earlier this week, has been taking place in Co Wicklow.
The 50-year-old died after a gunman opened fire at the club around 7am on Tuesday.
Boxer Katie Taylor's father Pete and another man were also injured in the attack.
Bobby Messett's funeral service began at 11.30am this morning St Mochonog's Church in Kilmacanogue in Co Wicklow.
Members of the Bray Wheeler's Cycling club and Glencormac United formed a guard of honour as Bobby's remains were brought to the church.
A picture of his three granddaughters, a number 5 Glencormac United jersey and a pair of boxing gloves were among the items brought to the altar to symbolise his life.
Bobby has been remembered as a gentle family man whose life has been cut short.
His son Gary said his father was one of a kind, telling mourners: "My da never sat still for a minute... he loved to keep busy, and he did just that. He's left a huge void in our lives that will never be filled again."
Prayers were also said for boxing trainer Pete Taylor and Ian Britton who survived the attack but were seriously injured.
In a statement released to the Irish Times yesterday evening, Katie Taylor said that Messett's family 'didn't deserve this heartache' and that she is 'so sorry for their loss'.
She stated: "I would like to wish my most heartfelt condolences to the family of Bobby Messett for their tragic loss.
"I can’t imagine the despair or the sense of injustice they must be dealing with. I’m praying they know God’s comfort in the hard days ahead."
The Olympic champion said that while she has been estranged from her father for a number of years, she is still very thankful he survived the attack and is recovering well.
Garda investigations into Tuesday's shooting are ongoing.