Ezzat was an influential former deputy to Brotherhood leader Mohamed Badie, and was seen as a hardliner within the group.
The entire board of five has stepped down and will not stand for re-election.
Erian, 77, had served as deputy leader of the Brotherhood's Freedom and Justice Party, and was swept up in a crackdown on the movement's leadership after it was forced from power in 2013.
A weekly selection of opinions and analyses from the Arab media around the world.
Twitter launches inquiry against Grenell for exposing lethal homophobia
Giving a Muslim Brotherhood supporter the ability to decide what is permitted on Facebook’s is a step in the wrong direction, and not only for Jews and for Muslims opposed to the Brotherhood.
Yemeni Nobel Peace Prize Laureate Tawakkol Karman has been picked as one of 20 members of the new board, but has in the past proclaimed support for the Islamist organization.
n a speech to delegates at the 37th World Zionist Congress in Jerusalem in 2015, Prime Minister Benjamin Netanyahu drew a great deal of criticism after claiming this exact theory.
The Council on American Islamic Relations celebrated its 25th anniversary in 2019, publishing a gala program which included full copies of the letters
The "We Support Jeremy Corbyn" Facebook page, which has 72,000 members, was run from the Gaza strip from 2017 until recently.