That is true of Albion and Albanius which Johnson ascribes to 'King Arthur.' Cf. p. 28, 1, 16 sq.
'In anno 1685 the opera of Albion and Albanius was performed, wrote by Mr. Dryden and composed by M. Grabu, this being performed on a very unlucky day, being the day the Duke of Monmouth landed in the West, the nation being in a great consternation, it was performed but six times, which, not answering half the charges they were at, involved the company very much in debt.'Downes, Roscius Anglicanus (1708) p. 40.
The first night was the 6th of June, 1685. Johnson should have written ' Albion and Albanius ,'