"Don Pedro"@en . "Pierre \"Don Pedro\" Sainsevain"@en . . "Sainsevain, Pierre"@en . "Pierre \"Don Pedro\" Sainsevain (November 20, 1818 \u2013 October 4, 1904) was a French settler in California during the Mexican era. Sainsevain was the recipient of a Mexican land grant, and built a lumber mill and a flour mill. He was a member of the first California Constitutional Convention; and became a winemaker and the first producer of sparkling wine in California."@en . . "1818Z"^^ . "1818-11-20Z"^^ . "American winemaker" . "1904-10-04Z"^^ . "1904Z"^^ .