Query on name on profile

Lena Glasner has a profile name of Lena GLASNER nee ELSASS which makes sense as she is the sister of N ELSASS and the wife of Kaufmann Jakob GLASNER and the mother of many children with the last name as GLASNER

However she has a display name of Maria Spitzer (Kuffler)

Can anyone explain the connection between the names

Thanks
Leanne