  In the context of canonical quantum gravity, we study an alternative real
quantisation scheme, which is arising by relating simpler Riemannian quantum
theory to the more complicated physical Lorentzian theory - the generalised
Wick transform. On the symmetry reduced models, homogenous Bianchi cosmology
and 2+1 gravity, we investigate its generalised construction principle,
demonstrate that the emerging quantum theory is equivalent to the one obtained
from standard quantisation and how to obtain physical states in Lorentzian
gravity from Wick transforming solutions of Riemannian quantum theory.
