not on same pirate, this is just a total count of them over various pirates:
hex breaker musket x2
grand blunderbuss x2
bejeweled cutlass x2
bejeweled broadsword
bejeweled sabre x3 (eww disappointed)
master work sabre x2
sword master's sabre x2
bloodfire cutlass x2
corsair cutlass
corsair bayonet
bush master pistol
sacred pistol
i tend to get the weak lame relics :
: