This chapter provides a survey of ecclesiastical and monastic organisations and how lay people engaged with them. There was no singular ‘Frankish Church’. There was considerable variation in what people wanted, how the liturgy was arranged, access to church councils and books, and how communities connected to Roman, English, Irish, Spanish, or Byzantine religious worlds. Communities were united by relatively compact beliefs, not least the need for imminent moral reform and penance ahead of an inevitable appearance at Judgement Day – whether it was at hand or far in the future.