Queen Elizabeth II 90th Birthday Gold Coin Old Royal Family Stamps Kate William
Hardman 2019, p. 437. BBC Books 1991, p. 181. Titles, styles, honours, and arms. Roberts 2000, p. 101; Shawcross 2002, p. 139. Hardman 2011, pp. 167, 171–173. Campbell 2003, p. 467. Neil quoted in Wyatt 1999, diary of 26 October 1990.