Unknown coats of arms

[piu11]

I saw this oats of arms seal on the Internet. Who knows anything about it? Thank you!

[Kiltpin]

These arms are Spanish. In the 3rd quarter (bottom right) (we see it as 4th because the arms are flipped) is what is called "a Royal Bend". It is a bend issuing from the mouths of 2 dragons in opposite corners. It is reserved for Spanish Royalty, or members of the Royal family. 

The owner of this shield is related to someone who is married to someone from the Royal Family.   

Closer than that I can't get. 

Regards 

Chas

[davidbappleton]

Chas,

Are you sure that the banda engolada (in English blason, bend engouled) is restricted to Spanish royalty? I find examples of it (in the Diccionario de Heraldica) used by the Basque family Yuste, the Hermosilla family of the province of Burgos, the Garrido family of Aragon, and others, none of whom appear to have a royal connection.

David

[piu11]

Is that a knight's helmet on top of the coat of arms?
And the bottom left is a tree?
Does the five roundel in the top right hand corner means five holy wounds? Or anything to do with Portugal? (I see the same pattern in the coat of arms of Portugal but Chas said this is from Spanish, not Portugal.)
And I really can't see the pattern in the upper left. Does this help in finding information and history about this coat of arms?

[davidbappleton]

It is a closed helm facing dexter, which may or may not be indicative of a specific rank.

It does appear to be a tree in the bottom left (fourth) quarter.

The five roundels may, or may not, indicate the five holy wounds. This pattern of "two, one, and two" is common for five charges on a field.

The pattern in the upper left (second) quarter reminds me of a square buckle, but I cannot be certain that such an identification is correct.

David