  This note is devoted to the study of families of quaternionic modular forms
arising from orders defined by Pizer. In this situation, the Hecke-eigenspaces
are 2-dimensional contrary to the classical case of Eichler orders. The main
result is a Control Theorem in the spirit of Hida, interpolating these
2-dimensional Hecke-eigenspaces. We restrict our attention to a definite
rational quaternion algebra ramified at a single odd prime $\ell$.
