We develop techniques to construct general discrete Wilson lines in fourdimensional N=1 Type IIB orientifolds, their T-dual realization corresponds to branes positioned at the orbifold fixed points. The explicit order two and three Wilson lines along with their tadpole consistency conditions are given for D=4 N=1 Z 6 Type IIB orientifold. The systematic search for all models with general order three Wilson lines leads to a small class of inequivalent models.There are only two inequivalent classes of a potentially phenomenologically interesting model that has a possible SU (3) color ×SU (2) L ×SU (2) R ×U (1) B−L gauge structure, arising from a set of branes located at the Z 6 orbifold fixed point. We calculate the spectrum and Yukawa couplings for this model. On the other hand, introduction of anti-branes allows for models with three families and realistic gauge group assignment, arising from branes located at the Z 3 orbifold fixed points.