<P> On 7 November 680 , a mere 37 bishops and a number of presbyters convened in the imperial palace , in the domed hall called the Trullus . The Patriarchs of Constantinople and of Antioch participated in person , whereas the patriarchates of Alexandria and Jerusalem were represented by Byzantine appointees ( because of the Saracen Muslim conquest there was at this date no patriarch in either of these sees ) . The Pope and a council he had held in Rome were represented ( as was normal at eastern ecumenical councils ) by a few priests and bishops . In its opening session , the council assumed the authority of an Ecumenical Council . The Emperor attended and presided over the first eleven sessions , took part in the discussions and returned for the closing session on 16 September 681 , attended by 151 bishops . </P>
<P> On 7 November 680 , a mere 37 bishops and a number of presbyters convened in the imperial palace , in the domed hall called the Trullus . The Patriarchs of Constantinople and of Antioch participated in person , whereas the patriarchates of Alexandria and Jerusalem were represented by Byzantine appointees ( because of the Saracen Muslim conquest there was at this date no patriarch in either of these sees ) . The Pope and a council he had held in Rome were represented ( as was normal at eastern ecumenical councils ) by a few priests and bishops . In its opening session , the council assumed the authority of an Ecumenical Council . The Emperor attended and presided over the first eleven sessions , took part in the discussions and returned for the closing session on 16 September 681 , attended by 151 bishops . </P>
where was the third council of constantinople held
where was the third council of constantinople held
in the imperial palace , in the domed hall called the Trullus
in the imperial palace , in the domed hall called the Trullus