Marriage of the parents of Renée Delacroix born 1698 in Ecorcei:
Thomas Delacroix, son of Thomas and Doursaincte JOUBERT from the parish of St Martin de L'Aigle married Marguerite LHERMINIER daughter of Marin and Jeanne LEFEBURE ( or LEFEBVRE) from this parish 23 november 1676
The groom could sign , the bride could not (the marc (mark) of the said margueritte lherminier)
Doursaincte is highly unprobable , I rather think she could be Toussainte .
Added : birth of their son thomas 1649 rather shows Poursaincte GOUBERT. Feminine form of Pourçain , Poursaint ?