Complex sentence: Hall, known as "Elegant Oakey", was said to be a front of serenity and respectability, although later historians have questioned the depiction of Hall as corrupt or as a front man for a corrupt political order.
Split into simpler sentences: Hall, known as "Elegant Oakey", was a model of serenity and respectability,. Recent historians have disputed the older depiction of Hall as corrupt or as a front man for a corrupt political order.