Gareth Wittstock, the 34-yr-old younger brother of Princess Charlene of Monaco, has married his long time girlfriend, Roisin Gavin, in a quiet wedding ceremony.

Wittstock, a South African-reared computer specialist has a daughter who's nearly two years old with his long time love.

The couple were married by Monaco Mayor Georges Marsan and reports say that the small ceremony is the first step to the big wedding celebration that will bring friends and family together on Friday.

In May, Wittstock was named as godfather for his niece, Princess Gabriella.