Key to Genealogies of titles of nobility
* The Maltese nobility - General information, Assessment of private interpretations, Official documents, Courts' application of rules, General principles, General Principles on Foreign titles, Application of General Principles, Particular Maltese Fiefs, Particular Maltese Titles, Particular Hybrid titles, Particular Foreign Titles, Satire, International Criticisms of Maltese Nobility.
* FOURTH CATEGORY - Includes those foreign titles extant pre-1798 but not presented to Commission.
* Uncategorized #1 - Identifies known fiefs - Fiefs (not titles) granted by the Grand Masters (1530-1798).
* Uncategorized #2 - Identifies those titles taken by the British Administration to be extant 1530-1798 but which were not. - Titles revived in 1883 by British Colonial Administration.
* Uncategorized #3 - Other titles granted by Reigning Sovereigns from 1798-onwards - Excludes any titles derived from private Orders.