It's a girl for the Earl and Countess of Ulster

The Earl and Countess of Ulster, Alexander and Claire Windsor, had their second child and first daughter, Lady Cosima Windsor, on May 20, 2010.

The couple was already parents to a son, Xan, Lord Culloden

The earl is the only son of TRH Prince Richard and Birgitte, Princess Richard of the United Kingdom of Great Britain and Northern Ireland, the Duke and Duchess of Gloucester, and he is first in line to succeed to the Dukedom of Gloucester.

The Earl has 2 sisters,  Lady Davina Lewis, who is married to Gary Lewis. They are expecting their first child together. Gary already has a son, Ari Lewis; and Lady Rose Gilman, who is married to George Gilman. They are expecting their first child.