The pair tied the knot in May 2014, and had three ceremonies to mark the occasion.
The first took place in Dublin’s Merrion Hotel, secondly in the five star Atzaro hotel in Ibiza, and finally at the Powerscourt Hotel in Wicklow.
Remembering their big day, Rosanna shared a throwback snap of the moment they became husband and wife, and simply said, “Five years married.”
The couple flew out to the Maldives earlier this week to celebrate their anniversary.
The pair have been enjoying some well-deserved downtime, soaking up the sun.