There are a number of different boundaries for the region.
Before 2010, the constituency existed from 1832-1918, and from 1950-1974, however on different boundaries during each period.
It has each of these identities - and each comes with its own different boundaries.
However, some of these terms may be used with very different boundaries, especially on the larger end of the scale.
The name was revived for the council area of Aberdeenshire, which has different boundaries.
These names survive to the present day as regional units of modern Greece, though with somewhat different boundaries.
Or you can slice the bits at different boundaries.
Various German agencies assumed a number of different boundaries in the east.
Note the different definitions and the different boundaries for this one subject area.
Burgundy itself has existed as a political entity in a number of forms with different boundaries.