  Due to its large number of symmetries the Schwarzschild Black Hole can be
described by a specific two-dimensional dilaton gravity model. After reviewing
classical, semi-classical and quantum properties and a brief discussion of
virtual black holes deformations are studied: the first part is devoted to
deformations of the Lorentz-symmetry, the second part to dynamical deformations
and its role for the long time evaporation of the Schwarzschild Black Hole.
