Carlos Gracie Sr. is widely credited as one of the primary developers of Brazilian Jiu-Jitsu. Born in Belém in 1902, he studied under Mitsuyo Maeda’s circle and Donato Pires dos Reis, then taught his brothers—including Hélio—helping turn that curriculum into the family’s self-defense system and academy network.

He later managed his brothers’ and sons’ fight careers more than he built a modern tournament résumé, and he popularized the nutritional regimen known as the Gracie Diet. On Open BJJ his profile is a historical anchor for lineage, academies, and why BJJ is often discussed through family trees rather than only through isolated competition results.