  We recently studied two large but disjoint classes of twisted open WZW
strings: the open-string sectors of the WZW orientation orbifolds and the
so-called basic class of twisted open WZW strings. In this paper, we discuss
{\it all T-dualizations} of the basic class to construct the {\it general}
twisted open WZW string -- which includes the disjoint classes above as special
cases. For the general case, we give the {\it branes} and {\it twisted
non-commutative geometry} at the classical level and the {\it twisted
open-string KZ equations} at the operator level. Many examples of the general
construction are discussed, including in particular the simple case of twisted
free-bosonic open strings. We also revisit the open-string sectors of the
general WZW orientation orbifold in further detail. For completeness, we
finally review the {\it general twisted boundary state equation} which provides
a complementary description of the general twisted open WZW string.
