Kabul - vijtAzva - svayambhU

[Erik Seldeslachts]

I have two questions:

1) What is the etymology of the name of Kabul (Afghanistan) ? Is it
Iranian, or might it be Indo-Aryan ?

2) Does anybody know of a son or successor to
 a) vijitAzva, son of king pRthu vainya (Padma P. e.a.);
 b) the teacher svayambhU (MahAbhArata).

Erik Seldeslachts
University of Ghent
Ghent, Belgium