Firth married Italian documentary film producer Giuggioli on 21st June 1997 and they now have homes in Chiswick, London and Umbria, Italy. When Firth began to date Livia, he took up Italian lessons and now he is fluent in the language.
The couple met in Colombia when they were both working on the set of the mini-series 'Nostromo' and the romance allegedly blossomed from there. Firth previously dated two women he worked alongside; Meg Tilly from Valmont and Jennifer Ehle from Pride and Prejudice.
One of their most defining moments as a couple was when they dined with The Duke and Duchess of Cambridge or William and Kate at an ARK charity event in March 2011.
They have two sons, Luca and Matteo and have jointly set up Eco-Age which is a shop in Chiswick that promotes eco-friendly products.
Happy Wedding Anniversary Colin and Livia!
Source: Wikipedia and IMDB