- Has one older brother, H.E. Greve Nikolai William Alexander Frederik (b. August 28, 1999). He also has a younger half-brother, H.E. Greve Henrik Carl Joachim Alain (b. May 4th, 2009), and a half sister, H.E. Komtesse Athena Marguerite Françoise Marie, (b. 24 January 2012).
- Second son of Prins Joachim and Grevinde Alexandra, who now has the title of Alexandra Christina, Countess of Frederiksborg.
- Is seventh in line to the Danish throne.
- Cousin of Kronprins Christian Valdemar Henri John (b. 15 October 2005), Prinsesse Isabella Henrietta Ingrid Margrethe (b. 21 April 2007), Prins Vincent Frederik Minik Alexander and Prinsesse Josephine Sophia Ivalo Mathilda (twins, b. on January 8, 2011).
- His godparents are Count Christian Ahlefeldt-Laurvig, Oscar Davidsen Siesby, Damian Sibley, his maternal aunt, Martina Bent and Annick Boel.
- Grandson of H.M. Queen Margrethe of Denmark of Denmark and Prins Henrik and Richard Nigel Manley (born in Shanghai in 1924, died Jan. 2010) and Christa Maria Manley (née Nowotny, born in Austria in 1933).
- Degraded from a "Prince" to a "Count" during a monarchy reform in Autumn 2022.
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