She was born in Mährisch-Ostrau in Austria-Hungary (today Ostrava in the Czech Republic) as Lore Schirmer. She studied history, German literature and philosophy in Berlin and Vienna. In Berlin she met Kay Lorentz, who became her husband in 1944. Together they founded the Kabarett Kom(m)ödchen in Düsseldorf in 1947. It was one of the first political cabarets in Allied-occupied Germany after the Second World War. Until 1983 Lore and Kay Lorentz were directors of the Kommödchen and part of the ensemble.
From 1983, she started with solo programs. One of her most famous programs consisted exclusively of texts written by Heinrich Heine; even though he had written them more than a century before Lorentz' program was performed, they all referred to current topics.
She received several prizes:
- 1981: Honorary Deutscher Kleinkunstpreis
- 1986: Staatspreis des Landes Nordrhein-Westfalen
- 1989: Großer Kulturpreis der Sparkassen-Kulturstiftung Rheinland
- 1989: Honorary Recognition by the Heinrich-Heine-Gesellschaft (jointly with her husband)
- 2004: Start on the Walk of Fame of Cabaret (posthumous)
She died in 1994 in Düsseldorf of pneumonia.
On audio CD:
- Denk ich an Deutschland (A cabaret evening with texts of Heinrich Heine). CD. ISBN 3-931265-00-5
- Chansons. CD. ISBN 3-931265-01-3
- Frivolitäten – 10 Diseusen – 10 Chansons. LP. Polydor J 73 555