Richard-Trevor ap Edward ap David

   Another name for Richard-Trevor was Richard Trevor.

  Research Notes:

Source: A Genealogical and Heraldic Dictionary of the Landed Gentry of Great Britain & Ireland" by John Burke & John Bernard Burke, vol. I (London, 1847), p. 506.

Source: A Genealogical History of the Dormant, Abeyant, Forfeited, and Extinct Peerages of the British Empire by Sir [John] Bernard Burke (London, 1866), p. 538 has "II. Richard-Trevor, progenitor of the TREVORS OF OSWESTRY co. SALOP."