Complex sentence: The constituency was created for the first election to the Assembly, in 1999, with the name and boundaries of the Aberavon Westminster constituency, and it is entirely within the preserved county of West Glamorgan.
Split into simpler sentences: The constituency was created for the first election to the Assembly, in 1999, with the name and boundaries of the Aberavon Westminster constituency. It is entirely within the preserved county of West Glamorgan.