The royal lines – Spain's King Felipe VI, left, promises a monarchy for "new times" following the abdication of his father, Juan Carlos. Here, father and son attend a ceremony Thursday, June 19, in Madrid before the new king's official coronation. Click through to see other European royal heirs:
The royal lines – Willem-Alexander becomes King of the Netherlands on April 30 after the abdication of his mother, Beatrix, center. His wife, Queen Máxima, accompanies them to a dinner in Amsterdam before Beatrix officially steps down.
The royal lines – Prince Daniel, center, pictured with his wife Crown Princess Victoria, is the heir to King Carl Gustav of Sweden.
The royal lines – Norway's Crown Prince Haakon, left, and Crown Princess Mette-Marit, second left, are next in line behind King Harald and Queen Sonja.
The royal lines – Crown Prince Philippe, right, is the heir to King Albert II of Belgium.
The royal lines – Left to right: Denmark's Crown Princess Mary and Crown Prince Frederik are next in line behind Prince Consort Henrik and Queen Margrethe.