The child is the son of Caroline's eldest, Andrea Casiraghi, and his fiancée

By Peter Mikelbank
Updated March 22, 2013 01:00 PM
Pascal Le Segretain/WireImage

Princess Caroline of Monaco is a first-time grandmother, Monaco’s Pink Palace announced on Friday.

“The Princess of Hanover and Madame Vera Santo Domingo have the joy to announce the birth of their grandson, born on March 21, 2013,” a Palace statement said. “Both mother and the child are doing well.”

The child is the son of Caroline’s eldest, Andrea Casiraghi, 28, and his fiancée, Tatiana Santo Domingo, 29, who intend to wed later this year.

Under Monaco’s constitution, Casirghi is second in line – directly after Caroline, 56 – to succeed his uncle Prince Albert II, as Monaco’s ruling sovereign. Until his uncle produces an suitable heir, Casiraghi’s infant son will become third in line.

No mention of the child’s name yet, but it’s a subject certain to monopolize conversation at the Monaco’s traditional Bal de la Rose this weekend.