Rodrigo Fróilaz de Trastámara

  Noted events in his life were:

• Reference:
Alberto y Arturo García Carraffa. Enciclopedia Heráldica y Genealágica, Tomo 70, Madrid 1953, p.1

Condes Fruela Bermúde, señor e Trastámara, a rich man of Galicia and a great knight, married doña Sancha Rodríguez. They were the parents:

Rodrigo Frolaz, conde de Trastámara and a wealthy man of Galicia and Portugal married Moñina González. they were the parents of:

Fruela Bermúdez, also called Frolaz Vermuiz, married doña Elvira González. they were the parents of:

Rodrigo Frolaz, conde de Trastámara arried Urraca Ruiz de Castro. They were the parents of:

Gonzalo Rodrígiez Frolaz, also called Gonzalo Ruiz, was the first of his family to move from Galicia to Portugual. He was the ower of Coto de Palmeira. He married doña Frolle Alonso, and they were the parents of:

Ruy González Pereia, señor del Castillo de Llanoso, was the first to use the name Pereira, which came from his manor in Portugal. Ruy married doña Sancha Enríque Portocarrero.

• Reference:
Francisco Antonio de Alarcón, Nobiliario del Conde de Barcelos, Don Pedro, Hijo del Rey Don Dionis de Portugal, p. 49

Don Rodrigo Fróliz de Trastamara was the son of don Frolaz Vermuiz de Trastamara and his wife Elivra Gonçalez, daughter of don Gonçalo Moñoz.