The Danish weekly Billed-Bladet published today, 7 August 2010, an interview (including photos) with Princess Nathalie of Sayn-Wittgenstein-Berleburg and her husband Alexander Johannsmann, who became parents to a boy on 24 July 2010.
The baby boy has got the name Konstantin Gustav Heinrich Richard zu Sayn-Wittgenstein-Berleburg-Johannsmann. Quite a mouthful in other words, but among his four given names only Konstantin will be in daily use. As mentioned in the Billed-Bladet interview, Princess Nathalie's father Prince Richard has Konstantin as one of his given names (Richard-Casimir Karl August Robert Konstantin). Curiously enough, Princess Nathalie says that her father has four names, while I count five (the hyphenated Richard-Casimir must count as one).
Prince Richard is married to Princess Benedikte of Denmark, a sister of Queen Margrethe II.
The date of Konstantin's christening has not been stated.