What key details about theo albrecht , jr. . can be extracted from the following bio? Bio: theodor '' theo '' albrecht , jr. -lrb- born 1950 -rrb- is a german billionaire businessman , the son of theo albrecht , founder of aldi .
- residence is mulheim an der ruhr , germany- relatives is karl , deceased -rrb- albrecht -lrb- uncle -rrb- berthold albrecht -lrb- brother- networth is us- birth date is 1950- name is theo albrecht , jr. .- nationality is german- parents is theo albrecht -lrb- deceased -rrb-- occupation is part owner of trader joe 's and aldi nord