Eduardo Saverin – Wikipedia

Saverin then filed a suit against Zuckerberg, alleging Zuckerberg spent Facebook’s money (Saverin’s money) on personal expenses over the summer. In 2009, both suits were settled out of court. Terms of the settlement were not disclosed and the company affirmed Saverin’s title as co-founder of Facebook.

https://en.m.wikipedia.org/wiki/Eduardo_Saverin