
Macieiowscius, (Polon. Maciejowski), was a convert from Catholicism, who officiated for a time as a Socinian Minister, but afterwards returned into the bosom of the Catholic Church. Peter Skarga makes mention of him, and of a letter addressed by him, in 1634, to Jerome Gostomski, Starost of Sandomir, in which he sets forth what he conceives to be thirty-eight errors of the Socinians. This letter of Maciejowski afforded Peter Skarga an occasion of writing a book on the presumed errors of the Socinians, which he dedicated to the aforesaid Gostomski.
(Vidend. Bock, Hist. Ant. T. I. pp. 463, 464.)