updated 03/30/2010 AT 1:00 PM ET
•originally published 03/30/2010 AT 1:30 PM ET
Gisele Bündchen and Tom Brady attended Gisele’s twin sister Patricia’s wedding in Brazil on Saturday – and their 3-month-old son Benjamin cut a dashing figure, sporting a mini tuxedo for the occasion.
Patricia, who is Gisele’s fraternal twin, married Rodrigo Pereira at the Laurentia Vineyard outside Porto Alegre. Gisele, 29, served as maid of honor – leaving Brady, 32, in charge of the diaper bag.
The evening coincided with Earth Hour, when people around the world turn off their lights for an hour as a symbolic commitment to the environment – a gesture the wedding guests also observed.