I am hoping to see if this can answer a question I have always had.
The UK and Ireland had an unusually high number of elves born to the more uppercrust bloodlines.
Now we know there was also a fairly high stillborn rate of dwarven babies in the region at the time so it was largely assumed that some of the high-ups were snuffing the halfer babies and secretly swapping in elves born to commoners and taking them as their own.
So on paper it looks like lots of noble elves born and loads of dead dwarves born to the normal rank and file, though if you follow the money often these same families were well compensated for their loss.
But what if the Courts were also playing the old Changeling game here by inserting more of their kin into the ranks with the long game in mind?