Definition of "simoniacal"

[B]y ambitious prenſations, by Simoniacal corruptions, by political bandyings, by popular factions, by all kinds of ſiniſter vvays, men crept into the place, doth appear by thoſe many diſmal Schiſms, […]

a. 1678 (date written), Isaac Barrow, “[The V. [Supposition] that the Bishops of Rome (According to God’s Institution and by Original Right Derived thence) should have an Universal Supremacy and Jurisdiction over the Christian Church]”, in J[ohn] Tillotson, editor, A Treatise of the Pope’s Supremacy. […], London: […] Miles Flesher, for Brabazon Aylmer, […], published 1680, page 149