  Recent charm spectroscopy results from Dalitz plot analyses of $B$ decays to
open charm final states at LHCb are presented. The decay modes used are $B^{+}
\to D^{-} K^{+} \pi^{+}$, $B^{0} \to \overline{D}{}^{0} \pi^{+} \pi^{-}$ and
$B^{0} \to \overline{D}{}^{0} K^{+} \pi^{-}$.
