He served in the cabinets of three Labour prime ministers and became Wales' longest-serving MP after representing Aberavon for more than four decades.
Lord Morris entered government as parliamentary secretary in 1964 and later became minister of defence (equipment) in 1968.
In 1974, he was appointed Welsh secretary and had the task of taking the party's ill-fated original devolution legislation through a hostile House of Commons.
He became government attorney general in 1997 and held that post for two years.
One of the main issues he faced as attorney general was the involvement of UK forces in Nato airstrikes against Serb forces in 1999.
Lord Morris steered the measure through Westminster in 1978 and was a key figure in the creation of the Welsh assembly.
He was a barrister, QC and Welsh speaker.
The National Library of Wales mourns the loss of Lord Morris, a "true friend" of the library, who has passed away.
The library's CEO, Pedr ap Llwyd, expresses condolences to Lady Morris and her family, stating that they will surely miss his presence at the library.
No further details have been provided.
LONDON DAILY ARCHIVE
Former Welsh Secretary and Attorney General Lord John Morris Passes Away at 91
Lord John Morris, a former Welsh secretary and attorney general, has died at the age of 91.
05 June 2023 · 22:46 UTC
