Does the energy-momentum tensor inside Einstein's field equation include gravitational stress-energy?

Question

The Einstein field equations $$ R_{\mu\nu} - \dfrac{1}{2}Rg_{\mu\nu} = \kappa T_{\mu\nu} $$

relate the space-time curvature $R_{\mu\nu}$ to the stress-energy $T_{\mu\nu}$ present in the system. I wondered whether $T_{\mu\nu}$ included the stress-energy due to gravity?

Answer 1

No, $T_{\mu\nu}$ only includes stress-energy density from non-gravitational sources.