House of Castro
House of Castro Osorio
Lords of Villafranca, Cabrera
and Ribera
Counts of Lemos
Matrilineal branch issued from Isabel de Castro, daughter of Álvaro Pires de Castro, 1st Count of Viana and Arraiolos
House of Castro Osorio
Lords of Villafranca, Cabrera
and Ribera
Counts of Lemos
Matrilineal branch issued from Isabel de Castro, daughter of Álvaro Pires de Castro, 1st Count of Viana and Arraiolos