The age determination of symbiotic stars is essential to put further constraints on models explaining these binary systems. In the Galactic field, this is especially problem- atic because of several limitations due to reddening estimations, for example. We searched for symbiotic stars as members of Galactic open clusters for which the age and overall metal- licity can be determined in a statistical sense. The most recent lists of well-established and candidate symbiotic stars and open clusters were matched, and we found seven good can- didates from which the well-established symbiotic star CQ Dra seems to be a true member of the old open cluster HSC 1224. The colour-magnitude diagrams for the other candidates raise some doubts about membership.
Keywords: symbiotic binaries – open clusters – stellar associations