The alleged or actual preservation of Jewish rites[?] by converted Jews or their descendants, crypto-Judaism was a particular target of the Inquisition. Crypto-Jews were sometimes called Marranos as a derogatory term.
... marine biologist and explorer
Alexandra David-Néel, (1868-1969), French explorer, visited Lhasa, Tibet in 1924
Cavalier de la Salle[?], explorer
Hernando de Soto, (died ...