Henry Stafford (c. 1425 – 1471) was soon released following a petition from his wife. After the Readeption of Henry VI in October, Henry and Margaret, together with Henry Tudor and his uncle, Jasper Tudor, attended an audience with the restored King and dined with the King's chamberlain, Sir Richard Tunstall. In March 1471 Edward IV landed with a small army. The leading Lancastrian commander, the Duke of Somerset, visited Henry and Margaret, his first cousin, at Woking in an attempt to persuade Henry to join the Lancastrian army which was being mustered. Henry was reluctant to commit himself, and adopted delaying tactics. However, on April
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 In November 2011, IEEE 1471-2000 and ISO/IEC 42010:2007 was superseded by ISO/IEC/IEEE 42010:2011, "Systems and software engineering — Architecture