Lord St Davids was married twice. Firstly, on 14 February 1888 to
Leonora Gerstenberg. They had two children: • Capt. Hon. Colwyn Erasmus Arnold Philipps (11 December 1888 – 13 May 1915) • Capt. Hon.
Roland Erasmus Philipps (27 February 1890 – 7 July 1916) His first wife, Leonora, died on 30 March 1915. Both their sons died during the
First World War and thus predeceased their father and did not inherit his title. Lord St Davids' second marriage was to
Elizabeth Frances Abney-Hastings on 27 April 1916. They had two children: •
Jestyn Reginald Austin Plantagenet Philipps, 2nd Viscount St Davids (19 February 1917 – 10 June 1991) • Hon. Lelgarde De Clare Elizabeth Philipps (23 September 1918 – 1984), who married, in 1950, Colin Charles Evans; they divorced in 1967. ==Arms==