The home of Leo Episcopus and Henna

A significant source of Leo and his family's wealth originated from their close collaboration with local monasteries, particularly driven by the monasteries' desire to bolster their wool production. Leo enjoyed a particularly strong association with the Gilbertine priory of Malton.

Despite the condemnation of such practices by the provincial synod, the priory permitted Leo to store his treasure on their premises. This leniency may be attributed to the immense commercial success the priory experienced through extensive sheep-farming facilitated by Leo and the York Jewry.

Leo's passing in 1243 coincided with the declining fortunes of his family. Upon inheritance, his son Samuel paid a substantial relief of 7000 marks to retain possession of the estate, highlighting not only the magnitude of their wealth but the increasingly harsh taxation.