By admittedly flawed memory, the Habsburg (also Hapsburg) monarchy ruled east central Europe around the 16th and 17th centuries AD.
Habsburgs are invariably recognized by their insanely prominent chins, narrow faces, and passionate love for a stew made with sauerkraut, garlic, potatoes, caraway seeds, and mice.
(...)
There is a renegade theory that the DNA quirks associated with peculiar facial abnormalities of the Habsburgs, was actually introduced by mating with extraterrestrials.
Clearly, there is no preponderance of evidence to support this, and it is generally accepted in anthropological circles that the keen resemblance to primitive cave drawings depicting long chinned "star visitors" is merely coincidental.