Bertelsmann shareholder Liz Mohn is handing over the office of family spokeswoman in the Bertelsmann management company to her son Christoph Mohn.
The Bertelsmann Group announced on Friday in Gütersloh.
The "Spiegel" had previously reported.
The 79-year-old has been the committee's family spokesperson since 2002.
This looks after the shareholders' interests of the non-profit Bertelsmann Foundation and the Mohn family.
According to the information, the transition will take place on June 21st - on that day Liz Mohn will be 80 years old.
Christoph Mohn (55), who is already chairman of the Bertelsmann supervisory board and a member of the steering committee of the Bertelsmann Verwaltungsgesellschaft (BVG), will be chairman of the steering committee in addition to the office of family spokesman.
With the transfer of office, Liz Mohn will remain a member of this committee.
She also remains a member of the Bertelsmann Supervisory Board.
With more than 132,000 employees around the world, the Bertelsmann Group achieved sales of around 17.3 billion euros in 2020.
In addition to the book publishing group Penguin Random House, the group includes the television group RTL Group, the Hamburg magazine publisher Gruner + Jahr, the music company BMG and the service provider Arvato.
The RTL Group contributes the largest share of sales, followed by Arvato.
Bertelsmann holds 75 percent of the listed RTL Group.
Bertelsmann itself is not listed.
Bertelsmann is largely owned by foundations, including the Bertelsmann Foundation.
The Mohn family holds the remaining shares of just under 20 percent.