Princess Charlene of Monacao announced that she and Prince Albert are expecting twins later this year.
The former South African Olympic swimmer will birth the first set of heirs to the throne from Prince Albert.
He has two adult children, 22-year-old daughter Jazmin Grace Grimaldi and 11-year-old son Alexander Coste, but because each were each born out of wedlock, they do not qualify in the royal lineage.
The couple married in 2011 and Princess Charlene has long said she wanted children of her own but that it was “in God’s hands,” she told Vanity Fair.
Prince Albert is the eldest son of Princess Grace.