  We investigate the mass spectrum of Nucleon and Delta (and its counterparts
with strange and charm), and their excited states, in quenched lattice QCD with
exact chiral symmetry. For each light baryon, we use 23 masses to determine the
coefficients of the mass formula in quenched chiral perturbation theory. By
chiral extrapolation to m_\pi=135 MeV, we obtain M_N=958(26) MeV,
M_{N*}=1553(42) MeV, M_{Delta}=1216(32) MeV and M_{Delta*}=1611(17) MeV, which
are identified with N(939)P_{11},N(1535)S_{11}, Delta(1232)P_{33} and
Delta(1620)S_{31} respectively. Further, we directly measure the masses of
Omega^{-}, M_{Omega}=1648(60) MeV, and its excited state, M_{Omega*}=1935(48)
MeV; as well as the triply charmed baryon Omega_{ccc}^{++},
M_{Omega_{ccc}^{++}}=4931(22) MeV, and its excited state,
M_{{\Omega^{++}_{ccc}}^*}=5185(35) MeV.
