Cecily Neville, Duchess of York visited Sandwich, possibly trying to reconcile the parties. When the rebellion failed the first time, she invited Edward and George to London to reconcile them. Peace did not last long, and in the forthcoming war, she still tried to make peace between her sons. Edward IV was briefly overthrown by Warwick and Margaret of Anjou, and for about six months (October 1470 – April 1471), Henry VI was restored to the throne. The breach between Edward and his brother George was apparently never really healed; indeed, George was executed for treason in the Tower of London on 18 February 1478.
IEEE 1471 Standards Board approved the specification as IEEE Std 1471-2000. In 2006, ISO/IEC Joint Technical Committee 1 (JTC1), Information technology/Subcommittee SC 7, Software and systems engineering, adopted the specification as ISO/IEC 42010, under a special "fast-track procedure", in parallel with its approval by national bodies of ISO and IEC. A coordinated revision of this standard by ISO/IEC JTC1/SC7/WG42 and IEEE CS commenced in 2006, following the successful ISO/IEC fast-track ballot and in line with the IEEE standard 5-year review of the standard. In November 2011, IEEE 1471-2000 and ISO/IEC 42010:2007 was superseded by ISO/IEC/IEEE 42010:2011, "Systems and software engineering — Architecture