In July 1998, the Frenchman Gaël Duval released his new GNU/Linux distribution called Mandrake-Linux. It was a fork of Red Hat using the KDE desktop - something that Red Hat itself was unwilling to provide because at that time the underlying Qt libraries were not open source. In 2005, the company set up to develop Mandrake-Linux further, MandrakeSoft, purchased the Brazilian open source company Conectiva, and the resulting distribution of the combined forces was re-named Mandriva. And now Mandriva is returning to its roots as a fork by being forked, as a new distro called Mageia:
On Open Enterprise blog.