Myrtle Robertson, 11th Baroness Wharton

• Honorific Prefix — The Right Honourable • Name — The Baroness Wharton • Office1 — Member of the House of Lords • Status1 — Lord Temporal • Term Label1 — Hereditary peer • Term Start1 — 4 April 1990 • Term End1 — 11 November 1999 • Predecessor1 — The 10th Baroness Wharton • Successor1 — Seat abolished • Term Label2 — Elected Hereditary Peer • Term Start2 — 11 November 1999 • Term End2 — 15 May 2000 • 1blankname2 — Election • 1namedata2 — 1999 • Predecessor2 — Seat established • Successor2 — The 2nd Baron Cobbold • Born — 20 February 1934 • Died — 15 May 2000

Wharton was the daughter of David George Arbuthnot and Elisabeth, née Kemeys-Tynte, 10th Baroness Wharton. She was brought up in South Africa and was educated at the Herschel school for girls in Clarement, Cape Province. She was an advocate of animal welfare and became a vice-president of the RSPCA in 1997. When her mother died in 1974, the Barony went into abeyance. This was terminated in 1990, and Ziki Robertson became 11th Baroness Wharton. She was one of the 92 hereditary peers who were elected under the House of Lords Act 1999 to continue as members of the Lords when most of the hereditary peers lost their seats. She married Henry MacLeod Robertson and had four children including Myles Christopher David Robertson, 12th Baron Wharton. She died of sporadic Creutzfeldt–Jakob disease on 15 May 2000, aged 66.