  Recent results studying the masses and widths of low-lying baryon resonances
in lattice QCD are presented. The $S$-wave $N\pi$ scattering lengths for both
total isospins $I = 1/2$ and $I = 3/2$ are inferred from the finite-volume
spectrum below the inelastic threshold together with the $I = 3/2$ $P$-wave
containing the $\Delta(1232)$ resonance. A lattice QCD computation employing a
combined basis of three-quark and meson-baryon interpolating operators with
definite momentum to determine the coupled channel $\Sigma\pi$-$N\overline{K}$
scattering amplitude in the $\Lambda(1405)$ region is also presented. Our
results support the picture of a two-pole structure suggested by theoretical
approaches based on $SU(3)$ chiral symmetry and unitarity.
