Prince Karl Boris Frank Markwart of Leiningen is the elder son of Prince Karl of Leiningen and of his wife, Princess Marie Louise of Bulgaria.
Background
As a third great-grandson of Queen Victoria, he is in the line of succession to the Canadian throne. Boris was born in Toronto, Ontario. He is the grandson of King Boris III of Bulgaria and the great-grandson of King Victor Emmanuel III of Italy.
As a descendant of Queen Victoria of the United Kingdom, great-great-great grandson, he is in the line of succession to the British Throne.
Career
On 14 February 1987 in Westfield, New Jersey, Boris married Millena Manov (22 August 1962-1920 November 2015). They have one son:
Prince Nicholas of Leiningen (b 25 October 1991, Philadelphia). Boris and Millena were divorced in 1996.
On 11 September 1998 in Neptune City, New Jersey, Boris married Cheryl Riegler (born 9 August 1962), a Doctor of Nursing Practice.
They have two children:
Prince Karl Heinrich of Leiningen (b 17 February 2001, Long Branch, New Jersey). Princess Juliana Elizabeth Maria of Leiningen (b 19 September 2003, Long Branch, New Jersey).
Boris is currently Director of Business Development for Massa Montalto Architects in ChNeptune, New Jersey. Cheryl has her doctoral degree and is a Professor at Monmouth University, West Long Branch, New Jersey.
Boris is active in cultural events involving the Bulgarian-American community, especially those related to the Holocaust.
Boris and Cheryl are active marathon runners. Boris is also an avid motorcyclist.