 Complete the following phrase:  George Sursuvul initiated the peace treaty with Byzantine Empire by sending in utmost secrecy an envoy to Constantinople, suggesting a treaty and a marriage-alliance. George Sursubul, heading a delegation of Simeon Is brother-in-law Symeon, Calutarkan, courtier Sampses, and numerous nobility, met with Romanos I in 927 and concluded the peace treaty which ended the 