On 6 November 2012, his fiancée Tatiana Santo Domingo announced to La Voz Libre that she was expecting a baby. She gave birth to a boy, a son named Alexandre Andrea Stefano "Sasha" Casiraghi, on 21 March 2013, at Portland Hospital in London, England. As his parents were not married at the time of birth, he was not then included in the Monegasque line of succession. However, due to their subsequent marriage their son currently occupies the fifth position in the line of succession to the Monegasque throne.