Minoo Lenarz
Minoo Lenarz or Minoo Moshrefi( 18 September 1966 in Tehran, Iran – † 2 December 2015 in Hannover, Germany) was an Iranian- German Professor and medical scientist.
Ralph Gracie
Ralph Gracie( the Pitbull; born May 25, 1971) is a Brazilian martial artist who has competed in mixed martial arts.
He is the son of Robson Gracie and brother to Charles Gracie, Renzo Gracie and the late Ryan Gracie of the Gracie family.
Rolles Gracie Jr.
Rolles Gracie Jr.( born July 14, 1978) is a Brazilian professional mixed martial artist, Brazilian Jiu- Jitsu practitioner, and professional wrestler.
As the son of Rolls Gracie, he is a third generation martial arts member of the Gracie family, and a 4th degree black belt in Gracie Jiu- Jitsu.
Márcio Stambowsky
Márcio "Macarrão" Stambowsky (born February 22, 1959) is a Brazilian martial artist.
An 8th degree coral belt in Gracie Jiu-Jitsu, he is one of the "Famous Five" Rolls Gracie black belts.
Regarded as one of the top Brazilian competitors of the 1980s, he is also the father of professional Bellator MMA fighter Neiman Gracie Stambowsky.
Mauricio Motta Gomes
Maurício" Maurição" Motta Gomes is a practitioner of Brazilian Jiu- Jitsu, one of the few people to have been promoted to black belt by Rolls Gracie.
The nickname" Maurição" means Big Maurício.
He has been training and teaching BJJ for over 50 years and at present holds the rank of 8th degree white and red belt.
He is the father of Roger Gracie.
Rolls Gracie
Rolls Gracie ([ˈɡɾejsi] 1951–1982) was a Brazilian martial artist.
He was a prominent member of the Gracie family known for their founding of Brazilian jiu-jitsu and considered by some the family's best ever fighter.
He was teacher of Rickson Gracie, Carlos Gracie Jr., Royler Gracie, Maurício "Maurição" Motta Gomes, Márcio "Macarrão" Stambowsky, Rigan Machado and Romero "Jacare" Cavalcanti.
He died in a hang-gliding accident in 1982.
Renzo Gracie
Renzo Gracie( born March 11, 1967) is a Brazilian mixed martial artist and Brazilian Jiu- Jitsu practitioner.
A member of the Gracie family of Brazil, Renzo is a 6th Degree Black Belt in Brazilian Jiu- Jitsu under Carlos Gracie Jr..
He is the son of Robson Gracie, grandson of Carlos Gracie, nephew of Carlos Gracie, Jr. grandnephew of Helio Gracie, and the 1st cousin once removed of Royce Gracie.
In mixed martial arts, Renzo has competed in the Ultimate Fighting Championship, Pride Fighting Championships, K- 1, RINGS, and International Fight League( head- coaching the New York Pitbulls).
He holds notable victories over five former UFC Champions: Frank Shamrock( UFC Light Heavyweight Champion), Carlos Newton( UFC Welterweight Champion), Pat Miletich( UFC Welterweight Champion), Maurice Smith( UFC Heavyweight Champion), and Oleg Taktarov( UFC 6 Tournament Winner)
A world famous Jiu- Jitsu coach, Gracie has helped train a number of professional fighters such as: Georges St- Pierre, Frankie Edgar, Chris Weidman, Matt Serra, Ricardo Almeida, Roy Nelson, Rodrigo Gracie and Paul Creighton.
His brothers Ralph Gracie and the late Ryan Gracie were also famous fighters.
, a 2008 documentary film follows Renzo's influence on Brazilian Jiu- Jitsu and Mixed martial arts over a ten- year period, showing the origins of the sport from its bare knuckle days to the explosion of the sport in both Japan and America.
Robson Gracie
Carlos Robson Gracie( born 1935) is the 2nd son of Carlos Gracie.
Gracie is a 9th degree red belt in Brazilian Jiu- Jitsu, affording him the title of Grandmaster.
He is the father of several children including, Renzo Gracie, Keila Gracie, Charles Gracie, Ralph Gracie, Robson Gracie Jr. and the late Ryan Gracie.
He is also the grandfather of Georgia Gracie and Brazilian Jiu- Jitsu black belts Kyra Gracie and Neiman Gracie.
He is the great- grandfather of Niko Gracie.
Carlson Gracie
Carlson Gracie (August 13, 1932 – February 1, 2006) was a practitioner of Brazilian jiu-jitsu.
A member of the Gracie family, he was the eldest son of Carlos Gracie, and nephew to Hélio Gracie, founders of the Gracie jiu-jitsu.
Leonardo Xavier
Professor Leonardo
" The Wizard" Xavier was born on January 3, 1976, in Rio de Janeiro, Brazil.
At the age of 5, Leo ventured into his first martial art, taking judo in school.
At the age of 13 Leo began to take Tae Kwon Do classes.
Finally, at the age of 15 a friend introduced him to Brazilian jiu- jitsu.
Leo immediately became good friends with his coaches, Royler Gracie and Saulo Ribeiro.
Under their watchful eye, Leo began to successfully compete in local and regional tournaments in Brazil and, while he was still a blue belt, Leo began to help with classes.
Leo trained during this time at the legendary birthplace of Gracie Jiu- Jitsu, Gracie Humaitá Academy in Rio.
In 1999, Leo realized his dream of being promoted to black belt from the hands of his coaches Royler Gracie and Saulo Ribeiro.
He is one of an elite group who have had the privilege and honor of teaching Jiu- Jitsu at the Gracie Humaitá Academy.
In May, 2008, Professor Xavier was promoted by Royler Gracie to the rank of third degree black belt in Gracie Jiu- Jitsu.
He is currently( 2014) a 4th degree promoted by Rickson Gracie and recognized by Jiu- Jitsu Global Federation( JJGF).

Question: Were Rolls Gracie and Minoo Lenarz of the same nationality?
Answer: no