An account of the various Geraldine clerical lineages of the barony of Imokilly, Co. Cork. This traces the ramification of these related lines from a number of closely related ancestors of the lineage of the Geraldine Knights of Kerry who arrived in Imokilly late in the 14th century. This lineage provided two bishops of Cork & Cloyne and a line of hereditary deans of Cloyne. The last of these was Sir John fitz Edmund of Cloyne (c.1527¿1612), a major figure in contemporary Cork society, whose life and career is fully explored.