The engagement was announced 11 May 2006 between George Michael Alexander (Alex) Byng (b. 1973), second son of the Hon. Julian Francis Byng (b. 1938), by his 1st wife the former Ingela Brita Berglund (now Mrs Adrian Evans), & Mariana Sonnenberg, daughter of Mr Carlos Sonnenberg and Mrs Eugenia Chapar. Alex Byng is a grandson paternally of the 7th Earl of Strafford (1904-84).
Source: The Times 11 May 2006