Question

who associated with the first council of Buddhism and where was it held

Answer 1

According to the scriptures of all Buddhist schools, the first Buddhist Council was held soon after the death of the Buddha, dated by the majority of recent scholars around 400 BCE, under the patronage of the king Ajatashatru with the monk Mahakasyapa presiding, at Sattapanni caves Rajgriha (now Rajgir).