. "Petitpierre"@en . . . "1722" . "Ferdinand Olivier" . . . "Ferdinand Olivier Petitpierre"@en . "Ferdinand"@en . "Olivier" . . "Oliver"@en . "Ferdinand Olivier Petitpierre" . "Ferdinand-Olivier" . "PETITPIERRE" . "1790" . "Ferdinand-Olivier Petitpierre" . . . "Ferdinand Olivier PETITPIERRE" . "Ferdinand Oliver Petitpierre"@en . . . .