Thomas de Maizière

Along with Ursula von der Leyen and Wolfgang Schäuble, De Maizière was one of only three ministers to have continuously served in Chancellor Angela Merkel's cabinets from 2005 until 2018. Together with Von der Leyen, he was widely looked on as a possible future successor to Merkel. Before his appointment to the federal cabinet, he served as a minister in the state government of Saxony, including as chief of staff to the Minister-President, State Minister of Finance and State Minister of Justice. Provided by Wikipedia
1