German Education Minister Annette Schavan has resigned after a university stripped her of her doctorate for plagiarism.Duesseldorf's Heinrich Heine University voted last Tuesday to remove her doctorate following a review.
Ms Schavan, a close ally of Chancellor Angela Merkel, insisted she would still fight the university's ruling.
In 2011, Defence Minister Karl-Theodor zu Guttenberg also quit after allegations he plagiarised his thesis.
Johanna Wanka, the culture and science minister of the state of Lower Saxony, has been appointed as Ms Schavan's successor.
Part of the education minister's brief is to oversee German universities.