Where are we talking about mainly?
Flanders
What do they speak there?
Dutch
What was its span around AD 1000?
from the Strait of Dover to the Scheldt estuary
In what country is it located?
Belgium
What part of the country?
northern portion
Historically, what did it refer to?
County of Flanders (Flandria)
Is there a demonym related to it?
yes
What is it?
Fleming
What about its adjective?
Flemish.
What is its capital?
Brussels