Genealogy / Anyone know the name Neugewirtz? [15]

Trying to find any information on my ancestors:
HERMAN NEUGEWIRTZ BORN 1871
married to
AUGUSTA NEUGEWIRTZ ( maiden name IMERGLUK) BORN 1873
children
ROSA BORN 1896
FANNY BORN 1897
moved to live in the UK between 1897 and 1899 as next child
MARY BORN 1899 IN LONDON.

They are listed as coming from Krakan, Austria! Is this now renamed and part of Poland? They seem to be a family of Tailors.

Looking forward to hearing from anyone!