What was the highest number of admirals aboard a single ship at the same time?
Short answerNo definitive record is offered, but examples range from an Age of Sail flagship with a commodore and two admirals to late-World War II surrender gatherings with roughly a dozen flag officers.
NotesOne recalled Age of Sail example, tentatively placed at Trafalgar, has a ship carrying a commodore and two admirals. Late in World War II, surrender or signature ceremonies could put around a dozen admirals aboard one battleship as national representatives. A firm record depends on whether a temporary meeting counts alongside an operational command arrangement. The Dutch admiralties further complicate the question because even small detachments could carry their own flag officers, including the Schout-bij-nacht, equivalent to rear admiral. No maximum is claimed without further research and definitions.