Sophia Regine Cornelia Francina Church (Goch) - Where does 'Regine' come from in her name?

All records, that list her middle names, only have this lady's name as Sophia Cornelia Francina Goch/Church. Are there later records with Regine? Was it a family pet-name? The times she appears as a baptismal witness only use Sophia Cornelia Francina Goch (or Church if after her marriage).

Also, do we have a record giving her birth in July 1837? Her baptism on 1 Oct 1837 only gives '1837' as her birth date.