Albion (and Guy) were taken over by BL, which itself was sold to
Volvo.
The Victories are strictly speaking not quite Leyland. However,
the Vikings carried the Leyland badges too even though they came
from Albion.
Ashok Leyland was an Indian offshoot of BL, now independent. It
still produces the Viking based on old-school blueprints.
British Leyland wasn't sold to Vovlo, British Leyland became
Rover Group which then hived off its bus and truck businesses by
selling them off. Rover then focused on cars and through some means
disintegrated even more to a state that it is hard to really find
any quintessentially British car manufacturer now (MG Rover was
sold to the Chinese).
It really showed how big and filmsy British Leyland was - the
diseconomies of scale did it in, and Margaret Thatcher was
determined (and largely succeeded) to end such ineffiencies in the
British economy (by disbanding and privatising that large number of
previously nationalised (and merged) companies), which saw the
number of strike days decrease and better quality products being
produced.
