In Fire Emblem Awakening the royalty of Ylisse has a brand called the Brand of the Exalt. The yellow mark in the picture is what it looks like. In the game, the mark is shown on Chrom's arm. Lissa does not have it, but know one knows why. Even her son has it. Chrom's other sister soon jumps off a cliff, but she has it on her farhead. Lucina has it as well.