With his shock of platinum blonde hair, bright blue eyes and angelic face, Sasha is the image of Andrea when he was a little boy.
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Left: Andrea with Sasha Right: Andrea with Princess Caroline
Andrea, 30, also appeared before the people of Monaco from the balcony of the Royal Palace when he was still a tot.
Seated happily in his mother Princess Caroline's arms, pictures from the event would be echoed 29 years later as Andrea and his wife Tatiana Santo Domingo stepped out with their son.
Princess Caroline's eldest is currently preparing to become a father again.
Andrea and his wife Tatiana are expecting a brother or sister for Sasha
Earlier this month, it was revealed that Andrea and Tatiana were expecting a little brother or sister for Sasha, and a new cousin for Charlotte Casiraghi and Gad Elmaleh's son Raphäel.
Andrea and Tatiana married in Gstaad, Switzerland on 1 February 2014. The couple chose the romantic eleventh century Rougemont Church to exchange their vows in a candlelit, Roman Catholic service.
The royal duo had already held a civil wedding service in Monaco in August 2013 – just five months after Tatiana had given birth to Sasha.