On your question on the House of Silva. It does exist but it was mainly Portuguese, not Spanish, although there were inter-marriages. Genealogist Salazar y Castro wrote a treatise on this family. Regards, --Maragm (discusión) 18:43 7 may 2013 (UTC)Responder

Wish I could help, but I haven't studied it. You have a couple of very good "genealogists" at en.wiki. Try Agricolae or Smerc. You can also go to pt.wiki and check with Jorge alo. Regards, Maragm (discusión) 19:04 7 may 2013 (UTC)Responder
Oops..sorry, I meant [1]. --Maragm (discusión) 19:16 7 may 2013 (UTC)Responder