Mary Rothes Margaret Tyssen-Amherst, 2nd Baroness Amherst of Hackney, OBE, philanthropist, antiquarian and amateur ornithologist., 2nd Baroness Amherst of Hackney suo jure from 1909, charitable and archaeological patron, Lady of Justice of the Order of St John, OBE., 2nd Baroness Amherst of Hackney from 1909, patron and participant in Egyptian archaeological work, ornithologist and author., suo jure, from 16 January 1909, 1919, Lady of Justice of the Order of St John of Jerusalem, amateur archaeologist, ornithologist and charitable worker., ornithologist and author
Dates: 25 April 1857 – 21 December 1919
Biography
The eldest daughter and eventual heir of William Amhurst Tyssen-Amherst, she succeeded to the Amherst barony in 1909 under the special remainder in the original patent. Her marriage to Lord William Cecil created the Amherst of Hackney cadet line of the Exeter Cecils.
Notes / Sources
London Gazette patent extract reproduced by Leigh Rayment — https://www.leighrayment.com.au/peers/peersA2.htm
Cracroft's Peerage, Amherst of Hackney — https://www.cracroftspeerage.co.uk/amherst1892.htm
Amherst of Hackney Papers chronology — https://discoverarchives.library.utoronto.ca/downloads/william-amhurst-tyssen-amherst-papers.pdf
Family / Armorial Context
Family / cadet branch: Amherst of Hackney–Cecil
Father: William Amhurst Tyssen-Amherst, 1st Baron Amherst of Hackney
Mother: Margaret Susan Mitford
Spouse(s): Colonel Lord William Cecil, married 2 September 1885
Children / next generation: William Amherst Cecil, 3rd Baron Amherst of Hackney; Thomas James Amherst Cecil; John Francis Amherst Cecil; Henry Mitford Amherst Cecil
Armorial Registry
Baroness Amherst of Hackney — Mary Rothes Margaret Cecil, suo jure 2nd Baroness
Branch: Tyssen-Amherst/Cecil succession of the Amherst barony
Issued / recorded: 16 January 1909
Amherst of Hackney — Mary Rothes Margaret Cecil, 2nd Baroness, special-remainder heiress and Exeter-Cecil matrimonial transmitter
Branch: Tyssen-Amherst of Didlington and Foulden; later Cecil-Amherst of Foulden and Hackney
Issued / recorded: 1892-08-26
Amherst of Hackney — Mary Rothes Margaret Tyssen-Amherst, 2nd Baroness, suo jure armiger
Branch: Special-remainder heiress of the Tyssen-Amherst line; marital and dynastic connection to Cecil of Exeter
Issued / recorded: 1909
Amherst of Hackney — Mary Rothes Margaret Cecil, 2nd Baroness and the female-to-male succession
Branch: Tyssen-Amherst of Didlington and Foulden, transmitted into Cecil of Exeter by marriage
Issued / recorded: 1909-01-16
Baroness Amherst of Hackney — Mary Rothes Margaret Cecil's succession achievement through Lord William Cecil
Branch: Amherst of Hackney through the Cecil–Exeter marriage; Foulden and Hackney branch
Issued / recorded: 1909-01-16
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