EuroMillions jackpot winners Frances and Patrick Connolly both went to Queen's University Belfast.
She is from Glebe in Co Tyrone and he is from Belfast. They met at a wedding in 1989 and have been together for 30 years.
They spent 25 years working in Hartlepool and recently returned to a rented property in Moira, Co Down.
Mr Connolly ran a small business at one stage before going on to work for others. His expertise is in manufacturing.
Mrs Connolly worked as an educational programme co-ordinator and plans to do a PHD in clinical psychology.
They have three grandchildren, two boys and a girl, and three daughters, one aged 30 and twins aged 24.
One twin is in New Zealand doing a Masters degree. She will be travelling home and, during her stopover, has upgraded from a hostel to a modest hotel, her mother said.
Mr Connolly paid tribute to his "wonderful" wife and family.
He said they had never lived an overly extravagant lifestyle, joking that could be about to change.
He said he was retired for now while he decides what to do in the future while his wife said: "I am retired - 100%."
They said they wanted to focus on charitable work in the future, on job creation and doing good deeds.
Mrs Connolly would not disclose details of those they would be helping but promised to create some more millionaires in a list of 50 people who will benefit from a share of their winnings.
She added: "It is going to be so much fun."
"The pleasure for me will be seeing their faces and asking what they want us to do for them."