The leader of the Wasat Party, which describes itself as a moderate Islamist party, was released on bail late Monday, the party reported on its Facebook page.
Abu al-Ela Mady, the party's chairman, has been in custody since military ouster of former president Mohamed Morsi in July 2013, following mass protests against his rule.
A criminal court approved on Monday an appeal submitted by Mady's defence and ordered his release. He is not facing any other trials and therefore will be released from custody, his son told Aswat Masriya.
Mady was accused of inciting violence which led to clashes between Muslim Brotherhood demonstrators and residents of Giza's Bein al-Sarayat district in July 2013. He was charged with murder, attempted murder, "thuggery," "terrorising citizens" and arms possession.
The Wasat Party was part of the pro-Morsi Anti-Coup Alliance. The alliance was formed in late June 2013 to voice its support for Morsi's "legitimate" presidency.
The party exited the alliance in August 2014.
