Originally High Elf blood. A band of warrior type high elves moved north to the “Settlements” where they could fully exploit their warrior natures. Intermixed with a dwarven and gnomish tribe, with tales of several half-orges.
What about a 'criminal' society with distinct laws - for stealing, the larger the value of something stolen, the less punishment the courageous thief recieves (but must return it of course). For this pirates(?) caught petty thieves deserve to be punished harshly. If you take, you better take a lot.