We consider the chiral Lagrangian for charmed baryon fields with JP=21+ or JP=23+
Nearby in the stack
quantum numbers. A chiral expansion framework for the baryon ground state masses is worked out to N
3
LO as to compute their dependence on the up, down and strange quark masses for finite box QCD lattice simulations. It is formulated in terms of on-shell meson and baryon masses. The convergence of such a scheme is illustrated with physical masses as taken from the PDG. The counter terms relevant at N
3
LO are correlated systematically by large-
Nc
sum rules to leading and subleading order in a manner that keeps the renormalization scale invariance of the approach.