The striking Monegasque royal, who is about to wed her husband Andrea Casiraghi for a second time in a religious wedding ceremony, was pictured attending the Giambattista Valli Spring/Summer 2014 show on Monday.
Tatiana Santo Domingo
Wearing a chic all-black ensemble, Tatiana wrapped up in an elegant straight-cut, red coat, which matched her trademark red lipstick. The mother-of-one teamed the outfit with black heels and a matching black, printed handbag.
A regular at Paris Fashion Week, Tatiana, who co-runs the ethical fashion company Muzungu Sisters, was seated near editors Elizabeth von Guttman and Alexia Niedzielski to one side, and Vogue Italia's Franca Sozzani to the other. Looking every inch the fashionista, Tatiana happily posed for photographs before and after the event.
Elizabeth von Guttman and Tatiana
The brunette beauty and her husband may have already said "I do" at their August wedding last year, but Tatiana and Andrea are set to tie the knot again on 1 February.
According to reports, the Monegasque royals will take part in a Roman Catholic ceremony in the German-speaking village of Gstaad in Switzerland. Prior to the church union, Tatiana and Andrea will be making a weekend of their wedding.
The couple are reportedly hosting a fondue party on Friday 31 January at the alpine restaurant Berghaus Eggli and a wedding brunch on 2 February at the Palace Hotel.
Tatiana and Andrea Casiraghi
The celebrations are expected to be conducted privately, with guests reportedly including Princess Charlene of Monaco, fashion heiress Margherita Missoni and Italian socialite Bianca Brandolini.
Royal watchers will also be keen to see if Andrea's sister Charlotte Casiraghi will attend the wedding, having recently given birth to a baby boy named Raphaël.