Claudine Seugnet, SM/PROG - Parents? Sources?

What Sources do we have to prove that Claudine Seugnet, SM/PROG, Suzanne Seugnet, SM/Prog & Jeanne Seugnet
are the daughters of Èlie Seugnet & Jeanne Seugnet?

We don't even know for sure they were sisters, and Boucher only says they MAY have been related to "Elie Seugnet and his wife Anne Baudouin" NOT Jeanne Pelletreaux.

'Claudine, Susanne and Jeanne Seugnet, probably sisters, brought attestations from Amsterdam to the Stellenbosch church in April 1689. They came from the province of Saintonge, but the precise locality has not been established. They may have been related to Elie Seugnet and his wife Anne Baudouin, whose names are to be found in Amsterdam records. Anne Baudouin of Saintonge was naturalized there on October 17, 1709 after Elie Seugnet’s death. Her son Elie also became a Dutch citizen. Susanne Seugnet was still living in 1741, the widow of Francois Dutoit..'
* M. Boucher.M (1981). French speakers at the Cape: The European Background. Pretoria, UNISA: Ch 6: Cape settlers II: from the Rhone to the Atlantic p148-9

I'm removing the parents, pending us finding a Source.
I think this will also leave us with the question of where the extra siblings come from.

cf Èlie Seugnet and Jeanne Seugnet Still looking for Primary Source proof of this

Well __ ?
Was told by someone here on GENI :
Until you can bring proof or provide a source , that what is shown here is NOT true and that these parents are NOT the right parents ; it will remain as it is now unchanged .

https://www.myheritage.com/research/record-40001-1106222502/elie-se...

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https://www.familysearch.org/tree/person/details/LVZP-MW9

Individual or family possessions: birth-name: Elie Seugnet
Individual or family possessions: male
Individual or family possessions: birth: 1634; Charente-Maritime, Poitou-Charentes, France
Individual or family possessions: death: 15 November 1685; Meschers, Charente-Maritime, Poitou-Charentes, France

I have discovered though that even Familysearch records must be confirmed , a lot of incorrect date added on Familysearch .

So at first glance the 3 girls are all 3 children of Elie Seugnet and Jeanne Pelletreux

No primary sources.