Source: wikibot/karel-niessen
= Karel Niessen
{wiki=Karel_Niessen}
Karel Niessen might refer to a person, but as of my last knowledge update in October 2023, there isn't a widely recognized individual by that name in popular culture, literature, or other notable fields. If he is a public figure or has gained prominence after that date, I wouldn't have that information. It's also possible he might be a private individual or someone known in specific communities or professions.