Simargl

Simargl (also Sěmargl, Semargl) or Sěm and Rgel is an East Slavic god or gods often depicted as a winged dog, mentioned in two sources. The origin and etymology of this/these figure(s) is the subject of considerable debate. The dominant view is to interpret Simargl as a single deity who was borrowed from the Iranian Simurgh. However, this view is criticized, and some researchers propose that the existence of two deities, Sěm and Rgel, should be recognized.