Saints Theodore Tyro and Theodore Stratelates Church, Serres

Saints Theodore Tyro and Theodore Stratelates Church, or commonly known Saints Theodoroi (Greek: Άγιοι Θεόδωροι) is the old Byzantine Cathedral of the city of Serres in northern Greece.
It was built in 1124 and is dedicated to Theodore of Amasea (Tyro) and Theodore Stratelates.