Dom Baratheonu and other 85,000 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px. Icons are availble for download in PNG and vector (SVG, PDF, EPS, and more).
The icon for the Baratheon House is an image of a stag. The stag is depicted from its neck upward and has antlers, which have 4 points to them. The stag is looking to the right, so only one eye can be seen.