Morsi, who is being held at an undisclosed location, faces charges related to his escape from prison during the 2011 uprising, as well as complicity in the deaths and torture of protesters.
The latter charge involves demonstrations against him outside the presidential place in late 2012.
Sunday’s hearings come after days of relative calm in Egypt, following a week of unprecedented bloodletting in the country that began on August 14.
That was when security forces moved to break up two pro-Morsi protest camps in Cairo, sparking clashes that left nearly 600 people dead across the country in a single day.
Additional violence followed in the days after, raising fears of prolonged bloodshed.
But authorities have mounted a fierce crackdown against the Brotherhood and its allies, that has thinned the group’s ranks and sent many members into hiding.