Placaeus: original rectitude a natural gift, propagated by generation; grace only as a free gift, not as Christ's favor to sinners
Josué de la Place, in the Syntagma of Saumur Theses, disputation on the state of Adam before the fall, thesis 18, says that the first man's original rectitude should be counted among natural gifts. It was nothing other than agreement with the law of nature, a perfection created together with nature and meant to be handed on by natural generation, and so a natural perfection answering to man's natural faculties.
In thesis 26 he grants that original righteousness was indeed a grace, in the sense of a free gift coming from the same three persons who created nature itself. But it was not a grace in the sense in which the word is opposed to nature and means the effects of the divine favor with which God follows sinners in Christ.
Latin
XXIX. Josue Placeus in Syntagmate Thesium Salmuriensium Disputatione de statu Adami ante lapsum, Thesi decima octava, dicit rectitudinem originalem primi hominis naturalibus donis annumerandam fuisse, quoniam nihil aliud fuit, quam congruentia cum lege naturae, & perfectio quae fuit simul cum natura creata, & quae per naturalem generationem propaganda erat, adeoque perfectio naturalis naturalibus hominis facultatibus respondens. Thesi vero vigesima sexta concedit justitiam Originalem fuisse quidem gratiam, hoc est, donum gratuitum ab eisdem tribus personis profectum, a quibus natura ipsa creata fuit: & gratiam non fuisse, quo sensu hoc nomen opponitur naturae, & significat effecta favoris divini quo Deus peccatores prosequitur in Christo.