? Goethe

[silly moo]

This is a quizmail Q.
Work in which sister of Lothario marries the title character.
First published in 18C
I have googled and googled but cannot find a definitive answer.
Help much appreciated.
Many thanks.

[flaming]

I've got "Wilhelm Meister's Apprenticeship" by J.W. Goethe.  I got the page mentioning "Theresa" on Bartleby.com obtained via google.  Type 'sister of lothario', click world wide web, click 'I'm feeling lucky', Enjoy reading!  I only had a brief scan, but that looks like your answer.

[silly moo]

Thanks flaming ,