December 9 (Eastern Orthodox liturgics) - Wikipedia
https://en.wikipedia.org/wiki/December_9_(Eastern_Orthodox_liturgics)
December
8 - Eastern Orthodox Church calendar - December 10. All fixed
commemorations ... (see also December 7 - Slavonic); Saint Sophronius
the Archbishop of Cyprus (6th century); Saint Stephen “the New Light” of Constantinople (912) ...
December 9 - OrthodoxWiki
https://orthodoxwiki.org/December_9
10 Jun 2008 - Saint Stephen “the New Light” of Constantinople (912); Saint Syrus of Pavia, first Bishop and main patron-saint of Pavia in Italy (ca. 1st c.); ...