Monaco's spectacular National Day celebration was truly a family affair, with the youngest generation of royals – and a pregnant Beatrice Borromeo – stealing the show during the festivities.Princess Charlene looked regal arriving to the Monaco National Day Gala wearing a white embellished gown by one of her favorite designers, Akris. The mom-of-two paired the stunning dress with a matching floor-length coat.Photo: PLS Pool/Getty Images
Tatiana Santo Domingo was presented with a red bouquet upon her and her husband, Andrea Casiraghi's arrival to the National Day Gala. Photo: PLS Pool/Getty Images
The Monaco royal family - Princess Charlene, Prince Albert, Princess Caroline, Andrea Casiraghi and Tatiana Santo Domingo – were out in full force for the gala.Photo: PLS Pool/Getty Images
In newly-released behind the scenes photos from earlier in the day, mom-to-be Beatrice Borromeo, shared a sweet moment clapping with Princess Gabriella.Photo: G. Luci, Eric Mathon and axel bastello / Prince Palace
Princess Gabriella looked angelic, in her white Armani Junior ensemble as she played with her mother.Photo: G. Luci, Eric Mathon and axel bastello / Prince Palace
Prince Jacques gestured for his mom, Princess Charlene, to pick him up inside the palace.Photo: G. Luci, Eric Mathon and axel bastello / Prince Palace
Prince Albert's wife shook hands with a young boy, while at the Red Cross headquarters in Monaco, where the royals were passing out parcels at the annual charity ceremony.Photo: G. Luci, Eric Mathon and axel bastello / Prince Palace
Greeting wellwishers from the Palace balcony, Princess Charlene held daughter Princess Gabriella while Prince Albert placed a kiss on the head of his heir, son Prince Jacques.Photo: Thierry Orban/Getty Images
Twins Jacques and Gabriella, who turn 2 in December, looked sweet in their matching white outfits. The Princess' jacket is by Armani Junior.Photo: VALERY HACHE/AFP/Getty Images
Little Sacha Casiraghi held hands with grandmother Princess Caroline and dad Andrea Casiraghi. Photo: ERIC GAILLARD/AFP/Getty Images
Standing next to husband Pierre Casiraghi – Princess Caroline's son – a pregnant Beatrice Borromeo was elegant in an haute couture ensemble by Armani Privé.Photo: ERIC GAILLARD/AFP/Getty Images
The appearance was Beatrice's first since it was revealed earlier this month that she and husband Pierre Casiraghi are expecting their first baby.Photo: Pascal Le Segretain/Getty Images
Princess Caroline's granddaughter India Casiraghi, who is 19 months old, was making her first National Day appearance with dad Andrea Casiraghi and mom Tatiana Santo Domingo.Photo: ERIC GAILLARD/AFP/Getty Images
Charlotte Casriaghi looked characteristically chic in a red ruffle-trimmed coat and matching hat with veil.Photo: ERIC GAILLARD/AFP/Getty Images
Charlotte was on mommy duty, too – she was also spotted keeping her son Raphaël, who turns 3 in December, entertained.Photo: VALERY HACHE/AFP/Getty Images
Mom-of-two Princess Charlene kept her outfit simple, in classic black. Photo: ERIC GAILLARD/AFP/Getty Images
Princess Charlene wore a 1950s-inspired hat, perhaps a nod to her late mother-in-law, silver screen star Grace Kelly.Photo: ERIC GAILLARD/AFP/Getty Images
Princess Caroline, wearing Chanel, with 17-year-old daughter Princess Alexandra of Hanover.Photo: ERIC GAILLARD/AFP/Getty Images
Peek-a-boo! Raphaël took in the sights from his very special vantage point. Photo: Thierry Orban/Getty Images
Charlotte Casiraghi pointed out the happenings below to son Raphaël, whose dad is the royal's ex-partner, actor Gad Elmaleh. Joining them on the balcony were Princess Stephanie, left, and her son Louis Ducruet, 23.Photo: VALERY HACHE/AFP/Getty Images
Future dad Pierre Casiraghi got some practice in with adorable niece India.Photo: Pascal Le Segretain/Getty Images
Royal cousins Sacha and Raphaël waved tiny Monaco flags.Photo: VALERY HACHE/AFP/Getty Images
Princess Caroline did the honors of explaining the military parade to 3-year-old grandson Sacha Casiraghi.Photo: ERIC GAILLARD/AFP/Getty Images
Pierre Casiraghi and wife Beatrice, far right, with (left to right) Andrea Casiraghi and wife Tatiana Santo Domingo – holding hands with daughter India – Charlotte Casiraghi and Princess Stephanie's daughter Camille Gottlieb, 18.Photo by Pascal Le Segretain/Getty Images
During the mass held at Saint Nicholas cathedral, Princess Charlene, second from left, joined husband Prince Albert and Princess Grace's two daughters, Princess Stephanie, left, and Princess Caroline.Photo: ERIC GAILLARD/AFP/Getty Images
Prince Albert and Princess Charlene thanked church officials outside the cathedral.Photo: VALERY HACHE/AFP/Getty Images
A family portrait in the Monaco Palace Courtyard.Photo: Pascal Le Segretain/Getty Images
Another view of the festivities held in the courtyard, which was also the scene of Prince Albert and Princess Charlene's 2011 wedding.Photo: Pascal Le Segretain/Getty Images
Prince Albert gave a wave with wife Princess Charlene by his side. Photo: Thierry Orban/Getty Images