Nome persona:	Placide de Sainte-Hélène 1648-1734
Trovato in:	BNF (opac) Tooley's dictionary of mapmakers / compiled by R. V. Tooley ; with a preface by H. Wallis. New York : Alan R. Liss, c1979 + Supplement, c1985
Dati stor. biogr.:	Monaco agostiniano, geografo, allievo e cognato di Pierre Du Val
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