The tenth Emperor and High King of Faerie. Known popularly as "Adler the Prudent." During his reign the Mephitist Empire acquired more territory (relative to existing borders) than during any other reign since Irenaeus, with less proportional loss of life than any expansion since Thorwald. He instituted the ill-fated Lowfolk Interbreeding Initiative in an attempt to bolster elfkind's dwindling population. The economy thrived during his reign, and he proudly stated that no elf would go hungry while he wore the Imperial crown.

He was succeeded by his son Gawain.