The engagement was announced in December, 2006, between the Hon. Alexander Thomas Trenchard (b. 26 Jul 1978), son and heir of the 3rd Viscount Trenchard (b. 12 Mar 1951), of Standon Lordship, Hertfordshire, by his wife, the former Fiona Elizabeth Morrison (b. 1954), daughter of the late 2nd Baron Margadale, & Mira Popken, daughter of the late Herr Rainer Ostendorf and of Frau Hannelore Popken, of Hamburg, Germany.