The son of Prince Constantijn and Princess Laurentien of Orange-Nassau is called Claus-Casimir. Count Claus-Casimir is currently 6th in line for the Dutch throne.

Prince Claus of the Netherlands was the husband of queen Beatrix of the Netherlands. He died on October 6, 2002.

There's always Santa Claus. Merry Christmas!

Listen to the German pronunciation of Claus here:
http://www.nordicnames.de/Aussprache.html

In Sweden we have the spelling Claes, a bit fancier than Klas.

Claus Schenk Graf von Stauffenberg, a Colonel in the Nazi army, was central to the 20 July Plot to assassinate Hitler and institute Operation Valkyrie in an attempt to end World War II and come to peace with the Allies. He realized that what the Nazi party was doing was wrong and that one was either for Hitler or for Germany, but not both. He was executed after the failed assassination attempt by a firing squad on the next day.

Claus Berg (1470/80-1535) was a German woodcarver.

I prefer the spelling Klaus.

Nicolas... Claus... Here comes Santa Claus. Here comes Santa Claus right down Santa Claus lane. I love Christmas❄️.

I really like this name. It's also the name of a Blader in the Show BayBleyed: Metal Fusion.