<p>The central focus of this article is resolving the ‘Ontological Subordination Problem’, produced by a joint affirmation of the aseity of a divine being and the doctrines of eternal generation and the monarchy of the Father, which are central to Conciliar Trinitarianism, through a reformulated Intrinsicality Solution. By applying Gene Witmer’s Simple Theory of Intrinsicality, this article argues that aseity is an extrinsic rather than intrinsic property—and is able to do so without being subject to the objections raised against the original Intrinsicality Solution that is grounded on Rae Langton and David Lewis’ combinatorial analysis of intrinsicality. This reformulation reconciles the doctrines of eternal generation and the monarchy of the Father with the ontological equality of the divine persons, thus addressing a key tension in Trinitarian thought.</p>