On 4 January 2010, Princess Nathalie's engagement to
German horse breeder Alexander Johannsmann (born 6 December 1977), son of showjumper Heinrich-Wilhelm Johannsmann, was announced. The couple married civilly 27 May 2010 and religiously the following year, on 18 June 2011 at the Protestant Stadtkirche in
Berleburg, Germany. Princess Nathalie gave birth to a son, Konstantin Gustav Heinrich Richard, on 24 July 2010. He was named Konstantin for his maternal grandfather, whose middle name is Konstantin, as well as for his maternal grand-uncle,
King Constantine II of Greece; Gustav for his maternal uncle and godfather; Heinrich for his paternal grandfather; and Richard for his maternal grandfather. Konstantin's godparents were
Crown Princess Mary of Denmark, his aunt Ann-Kathrin Johannsmann, and his uncle
Prince Gustav. On 28 January 2015, she gave birth to her second child, a daughter named Louisa Margareta Benedikte Hanna, in Bad Berleburg, Germany. On 15 August 2022, the Danish court confirmed that Nathalie and Johannsmann had divorced. ==Honours and awards==