No more Royal babies for Prince William and Duchess Kate

Prince William claims one baby is "enough at the moment"..

Kate, The Duchess of Cambridge smiles after she presents Domhnall the Irish Wolfhound with a shamrock, during a visit to the 1st Battalion Irish Guards at the St. Patrick's Day Parade at Mons Barracks, Aldershot, in England. (AP)

The second in line to the British throne says he and his wife, Duchess Catherine, could eventually have another child to join eight-month-old Prince George, but at the moment the toddler is keeping their hands full.

Speaking to Sergeant Major Ray Collister at a Saint Patrick's Day parade in Aldershot, Southern England, the prince said: "Maybe one day. One's enough at the moment."

The Duchess of Cambridge smiles during a visit to the 1st Battalion Irish Guards at the St. Patrick's Day Parade at Mons Barracks, Aldershot, in England. (AP)

The Sergeant Major added: "He said maybe when there's time."

The Duchess of Cambridge smiles as she adjusts her hair during a visit to the 1st Battalion Irish Guards. (AP)

The Duke and Duchess of Cambridge made their first join public appearance of the year today at the event, where they joined the First Battalion Irish Guards for the third year running.

The prince - who was appointed Colonel of the regiment in 2011 - wore the officer's frock coat of the Guards to take part in the ceremony.

Britain's Prince William, the Duke of Cambridge and Catherine, Duchess of Cambridge walk past while visiting the Irish Guards during a St Patrick's Day parade in Mons Barracks in Aldershot. (AFP)

Another soldier who asked about the royal baby was Guardsman Glenn Tierney.

He said: "I asked them all about George, I'm nosey like that. They said he's doing really well and he's very busy crawling and eating."

(REUTERS)

During the parade, Catherine, 32, presented officers and warrant officers with Shamrocks, the symbol of Ireland, which is a duty traditionally performed by the wife of a senior officer in the regiment.

Prince William, the Duke of Cambridge and Catherine, Duchess of Cambridge pose for photographs along with officers while visiting the Irish Guards during a St Patrick's Day parade in Mons Barracks in Aldershot. 

Catherine, Duchess of Cambridge strokes the regimental mascot Irish Wolf Hound dog as she attends St Patrick's Day parade.

Prince William, the Duke of Cambridge looks on as Catherine, Duchess of Cambridge, is presented with a bouquet by two children during a parade while visiting the Irish Guards during a St Patrick's Day parade in Mons Barracks in Aldershot.

The Duchess of Cambridge smiles during a visit to the 1st Battalion Irish Guards at the St. Patrick's Day Parade at Mons Barracks, Aldershot, in England.

Prince William and his wife Catherine, Duchess of Cambridge stand on the dais during a visit to the 1st Battalion Irish Guards for a St Patrick's Day Parade at Mons Barracks in Aldershot, southern England. (REUTERS)

Catherine, Duchess of Cambridge and her husband Prince William wear sprigs of shamrock during a visit to the 1st Battalion Irish Guards for a St Patrick's Day Parade. (REUTERS)