This would fall within
the reign of Icon AMLAK according to Bruce's chronology, but not according
to Salt's, and a fortiori not according to any chronology throwing the
reigns further back still.
In Quatremere's Egypte we find another notice of a letter which came to
the Sultan of Egypt from the King of Abyssinia, IAKBA SIUN, in Ramadhan
689, i.e. in the end of A.D. 1289.
Again, this is perfectly consistent with Bruce's order and dates, but not
with Salt's.
The same work contains a notice of an inroad on the Mussulman territory of
Assuan by David (II.), the son of Saif Arad, in the year 783 (A.D.
1381-1382).
In Rink's translation of a work of Makrizi's it is stated that this same
King David died in A.H. 812, i.e. A.D. 1409; that he was succeeded by
Theodorus, whose reign was very brief, and he again by Isaac, who died in
Dhulkada 833, i.e. July-August 1430. These dates are in close or
substantial agreement with Bruce's chronology, but not at all with Salt's
or any chronology throwing the reigns further back.