Semele

There was Prussian duke Semelis, who escaped from teutonic knights
to Grand Duchy of Lithuania. There is place name Semelishkës in
Elektrënai district, Vilnius county, Lithuania.

Semelis > Semelishkis, meaning MAN FROM Semelis ARMY, or something
like that > feminine form Semelishkë > plural form Semelishkës

What etymology is of name Semelis? Can it be derivered from
Lithuanian word SEMIA, meaning IS SCOOPING, or word SËMË, meaning
WAS SCOOPING? Or can it be derivered from Lithuanian word SËMENYS,
meaning LINSEED?

SEMIA > name Semys > diminutive form Semelis
SËMË > name Sëmys > diminutive form Sëmelis > misspeling Semelis
SËMENYS > name Sëmys > diminutive form Sëmelis > misspeling Semelis ?

Can name Semelis be related to name of Thracian deity Semele?

Semelis > feminine form Semelë, Semele

Regards, Aigius