  A recent general analysis of light-baryon isospin splittings is updated and
extended to charmed baryons.
  The measured $\Sigma_c$ and $\Xi_c$ splittings stand out as being difficult
to understand in terms of two-body forces alone.
  We also discuss heavy-light mesons; though the framework here is necessarily
less general, we nevertheless obtain some predictions that are not strongly
model-dependent.
