The longtime couple exchanged vows inside the cloister of a convent called the Convento di Santa Maria di Costantinopoli, a luxury bed and breakfast in Brindisi, Italy, before just 40 close friends and family members, including the bride's brother, Jake Gyllenhaal, and his girlfriend, Reese Witherspoon.
A family friend, whom a source says donned a top hat for the occasion, officiated at the half-hour ceremony, which took place at 4:30 p.m. on Saturday.
Later, guests mingled in the convent's garden, which features a pool – and then were treated to a sit-down dinner inside. The chef and his team brought a special kitchen to the convent in order to accommodate the banquet. Guests enjoyed Castel di Salve wines – from a winery in the nearby town of Lecce – with their meal.
A traditional Italian music group, Zimbo, entertained at the reception. "We played songs by Domenico Modugno like, 'Tu Si Na’ Cosa Bella Pe Me' (Translation: 'You Are a Beautiful Thing for Me') and the famous hit 'Volare,' " a member of the group tells PEOPLE.
The following day, the bride and groom, who are parents to 2½-year-old daughter Ramona, had brunch with family, including Jake and Reese. They later biked to the town where they were spotted doing some shopping, according to sources, and spent time at a secluded beach called Acquaviva, known for its mixture of fresh spring water and sea water.