Catherine von Fürstenberg-Dussmann’s life changed dramatically in October 2008 - not only because husband Peter Dussmann suffered a stroke, but because she then had to take charge of his cleaning and technical services group.The Dussmann company employs over 56,000 people in 21 countries. Last year it posted a turnover of around €1.5 billion. And the boss seems to be revelling in her new role. Report by Alexa Meyer.