Claim: Joao de Souza Mendes was born in 1892 in Portugal, died 1t the age of 77 in Brazil.
Evidence: Souza Mendes died in Rio de Janeiro. Born in the Azores, Portugal, Souza Mendes played in the Brazilian Chess Championship 29 times, winning in 1925 (the first year the tournament was held), 1928, 1929, 1930, 1943, 1954, and 1958. (1892-06-23)23 June 1892
Angra do Heroísmo, Portugal 10 July 1969(1969-07-10) (aged 77)
Rio de Janeiro, Brazil João de Souza Mendes Júnior (23 June 1892 – 10 July 1969) was a seven-time Brazilian chess champion.