How many years after the death of George I was the Order of Saints George and Constantine instituted?
Order of Saints George and Constantine:  It was instituted in January 1936 by King George II in the memory of his grandfather (King George I) and his father (King Constantine I). George I of Greece: George I (Greek: Γεώργιος Α΄ , "Geórgios I"; born Prince William of Schleswig-Holstein-Sonderburg-Glücksburg; 24 December 1845 – 18 March 1913) was King of Greece from 1863 until his assassination in 1913.
It was instituted in January 1936