article_snippet: Waiting at Copenhagen's Kastrup Airport was the Scandinavian country's 74-year-old monarch, Queen Margrethe, her husband Prince Henrik, 80 and their son Crown Prince Frederik, 46.
article_snippet: Sweeping a curtsey: Crown Princess Mary of Denmark curtsies to Queen Maxima at Kastrup Airport .
article_snippet: : A beaming King Willem-Alexander steps off the plane to be greeted by Queen Margrethe .
article_snippet: Also on hand to welcome the Dutch royals at Kastrup Airport's private royal terminal were other members of the Danish Royal Family, among other members of the Danish Royal Family Frederik's younger brother Joachim.
article_snippet: Queen Margrethe, who along with Queen Elizabeth II, is one of the world's only Queens Regnant, then led the way out of the airport, escorted by King Willem-Alexander.
article_snippet: Crown Prince Frederik and Crown Princess Mary were at Kastrup to greet the Dutch royals .
article_snippet: Poised: Crown Prince Frederik and Crown Princess Mary appeared ready for action as the Dutch plane touched down .
article_snippet: Mary curtsies to King Willem-Alexander while Prince Joachim (right) waits in line .
article_snippet: Afterwards, Crown Prince Frederik and Crown Princess Mary will travel north to Aalborg in North Jutland where Crown Prince Frederik and Crown Princess Mary will attend a conference at the city's university before flying back to Copenhagen for a reception at the Christiansborg Palace.
article_snippet: Tomorrow will see Crown Prince Frederik and Crown Princess Mary visit the carbon-neutral Samsø island, accompanied by Crown Prince Frederik and Crown Prince Frederik wife Mary, to visit a special type of Danish boarding school called an efterskole.
highlights_snippet: Were greeted by Danish Royal Family, including Queen Margrethe .
  
highlights_snippet: With Elizabeth II, Queen Margrethe is one of only two reigning queens .
  
highlights_snippet: Other Danish royals, including Crown Princess Mary, were also there .