WINDSOR, UNITED KINGDOM - MAY 17: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Peter Phillips with daughter Isla Phillips and Autumn Phillips with daughter Savannah Phillips ride a merry go round during day 4 of the Royal Windsor Horse Show at Home Park on May 17, 2014 in Windsor, England. (Photo by Max Mumby/Indigo/Getty Images)

WINDSOR, UNITED KINGDOM - MAY 17: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Peter Phillips with daughter Isla Phillips and Autumn Phillips with daughter Savannah Phillips ride a merry go round during day 4 of the Royal Windsor Horse Show at Home Park on May 17, 2014 in Windsor, England. (Photo by Max Mumby/Indigo/Getty Images)