Complex sentence: The last bishop of Autun to wear the pallium, he was prominent in ecumenical relations and chairman of an episcopal committee which took the decision to offer communion in Catholic churches to Anglicans who found themselves out of reach of their own church in France.
Split into simpler sentences: The last bishop of Autun to wear the pallium, he was prominent in ecumenical relations. He chaired an episcopal committee decided offer communion in Catholic churches to Anglicans who found themselves out of reach of their own church in France.