  The masses of baryons containing a single heavy quark are studied in a
combined expansion in $1/m_Q$, $1/N_c$ and $SU(3)$ flavor symmetry breaking.
Heavy quark baryon mass splittings are related to mass splittings of the octet
and decuplet baryons. The $\Sigma_c^*$, $\Xi_c^\prime$ and $\Omega_c^*$ are
predicted to the level of a few MeV. A number of bottom baryon mass splittings
are predicted very accurately.
