Princess Madeleine of Sweden welcomes baby girl

Princess Madeleine of Sweden and her husband Christopher O'Neill. Photo / Getty Images

Sweden's Princess Madeleine has given birth to a baby girl in Stockholm, adding an new member to Europe's largest royal family.

"Mother and child are doing well," the palace said.

The new royal offspring, who was born at 12.41am local time is the third child of Princess Madeleine and husband Christopher O'Neill.

Mr O'Neill is said to have been present during the birth.

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Prinsessan Madeleine och herr Christopher O’Neills nyfödda dotter fotograferad på Danderyds sjukhus tidigare idag. 📸: Herr Christopher O’Neill

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"We're very excited about the new addition to our family," Mr O'Neill said after the birth.

Princess Madeleine is the youngest child of King Carl XVI and Queen Silvia.

However, Madeleine's newborn baby is unlikely to ever ascend to the throne, as there are already nine in line before her.

This is the third child of Princess Madeleine and husband Christopher O'Neill. Photo / Getty Images

These include Princess Victoria and her two children; Prince Carl Philip and his two sons; and the baby's older siblings Nicolas, aged 2, and Leonore, aged 4.

The Swedish family outnumbers all other European royal families in terms of offspring.

The new princess is the seventh grandchild of the reigning monarchs in Sweden.

Queen Silvia of Sweden and Princess Madeleine of Sweden. Photo / Getty Images

Mr O'Neill stays away from the royal limelight and even rejected an official royal title after the couple's wedding in June 2013.

Their eldest grandchild, Princess Estelle, turned six in February.

Princess Madeleine and Mr O'Neill, a US businessman, had lived in London and New York before the birth of their second child.

- with AP