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STOCKHOLM, SWEDEN - MARCH 03: (LtoR) Sweden's King Carl XVI Gustaf of Sweden, Queen Silvia of Sweden, Prince Daniel, Princess Estelle, Prince Carl Philip, Princess Sofia, Princess Madeleine and Christopher O'Neill attend a thanksgiving service for the newborn prince in the palace church at Stockholm Royal Palace on March 3, 2016 in Stockholm, Sweden. The newest addition to the royal family, and third in line to the crown, has been named Prince Oscar Carl Olof. (Photo byCharles Hammarsten /All Over Press Sweden/Getty Images)

STOCKHOLM, SWEDEN - MARCH 03:  (LtoR)  Sweden's King Carl XVI Gustaf of Sweden, Queen Silvia of Sweden, Prince Daniel, Princess Estelle, Prince Carl Philip, Princess Sofia, Princess Madeleine and Christopher O'Neill attend a thanksgiving service for the newborn prince in the palace church at Stockholm Royal Palace on March 3, 2016 in Stockholm, Sweden.  The newest addition to the royal family, and third in line to the crown, has been named Prince Oscar Carl Olof. (Photo byCharles Hammarsten /All Over Press Sweden/Getty Images)

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Front row from left, Sweden's King Carl Gustaf, Queen Silvia, Prince Daniel, Princess Estelle, Prince Carl Philip, Princess Sofia, Princess Madeleine and Christopher O'Neill attend a thanksgiving service for the newborn prince in the palace church at Stockholm Royal Palace, March 3, 2016. Sweden's newest addition to the royal family, and third in line to the crown, has been named Prince Oscar Carl Olof, King Carl XVI Gustaf announced. / AFP / TT News Agency / Anders WIKLUND / Sweden OUT (Photo credit should read ANDERS WIKLUND/AFP/Getty Images)

Front row from left, Sweden's King Carl Gustaf, Queen Silvia, Prince Daniel, Princess Estelle, Prince Carl Philip, Princess Sofia, Princess Madeleine and Christopher O'Neill attend a thanksgiving service for the newborn prince in the palace church at Stockholm Royal Palace, March 3, 2016.
Sweden's newest addition to the royal family, and third in line to the crown, has been named Prince Oscar Carl Olof, King Carl XVI Gustaf announced. / AFP / TT News Agency / Anders WIKLUND / Sweden OUT        (Photo credit should read ANDERS WIKLUND/AFP/Getty Images)