jbcb2009: Lukeazar trembekie
£ukasz Trembecki?
That's the most probable spelling and if so the pronunciation would be something like
Wookash Trembetzkee
(remember there are rolling r's in Polish, similar to the Spanish language)
Now the hard 'l' is encountered only along the eastern flank of today's small, truncated Poland.
That's what I've heard before. Too bad, I definitely prefer the "old" ł pronunciation.