This paper
studies studies the main factors which led to the ultimate failure of the
Council of Basel in 1449. It looks at
how it was an organisation that gave way to radicalism, its conflict with Eugenius IV and his successor Nicholas V and the loss of support the
council suffered in its latter stages. It shows how the radical membership that the Council of Basel contained eventually destroyed it through a dispute that marked the end of the Conciliar movement of the late medieval period.