Bertha Grossman/Grossmann, née Fuchs, married with Simche Beer Grossmann, who already died in 1918, was divorced from Arthur Grab, compare here: Bertha Grab (Fuchs) (1886 - 1942) - Genealogy
doew
Datei:SdE 1010 Werdertorgasse 4.jpg – Wien Geschichte Wiki
https://yvng.yadvashem.org/nameDetails.html?language=en&itemId=3985747&ind=1
her second husband Arthur Grab (she was his second wife as well): https://yvng.yadvashem.org/nameDetails.html?language=en&itemId=3985746&ind=1
This could have been her sister Therese/Theresia Scherlag, born in Trebitsch in 1877: https://yvng.yadvashem.org/nameDetails.html?language=en&itemId=4943930&ind=1
Therese Scherlag (Fuchs) (1877 - c.1941) - Genealogy
I could imagine this is her brother Ernst Fuchs, his pob in the doew-source is indicated with Grebitsch, which could be a typo, I think it’s Trebitsch as well, compare the pob of Therese Scherlag, the sister
https://yvng.yadvashem.org/nameDetails.html?language=en&itemId=409298&ind=1
This could have been her sister Charlotte Bratmann: Prisoner details - Auschwitz
Lotte Bratmann (Fuchs) (deceased) - Genealogy
