| Father |
| Gutierrez de Castro, Fernando | 1174 | 1240
| Mother |
| Iñiguez de Mendoza, Milia | 1190 |
| Sister |
Fernandez de Castro y Mendoza, Elvira |
1176 |
|
|
| Brother |
Fernandez de Castro Mendoza, Gutierre |
1222 |
|
|
| Brother |
Fernandez de Castro, Pedro |
1224 |
|
|
| Brother |
Fernández de Castro, Andrés |
1226 |
after 1262 |
|
| Sister |
Fernandez de Castro, Ines |
1227 |
1259 |
|
| Sister |
Fernández de Castro Mendoza, Urraca |
1228 |
|
|
| Sister |
Fernandez de Castro, Elvira |
1229 |
|
|
| Brother |
Fernández de Castro y Mendoza, Esteban |
1230 |
about 1291 |
|
| Sister |
Fernandez de Castro, Elio |
1230 |
|
|
| |
Fernandez de Castro Mendoza, Sancha |
1230 |
|
|
| Sister |
Fernandez de Castro Iñiguez de Mendoza, Teresa |
1260 |
|
|
| |
| Father |
| Gutierrez de Castro, Fernando | 1174 | 1240
| Mother |
| Iñiguez de Mendoza, Milia | 1190 |
| Sister |
Fernandez de Castro y Mendoza, Elvira |
1176 |
|
|
| Brother |
Fernandez de Castro Mendoza, Gutierre |
1222 |
|
|
| Brother |
Fernandez de Castro, Pedro |
1224 |
|
|
| Brother |
Fernández de Castro, Andrés |
1226 |
after 1262 |
|
| Sister |
Fernandez de Castro, Ines |
1227 |
1259 |
|
| Sister |
Fernández de Castro Mendoza, Urraca |
1228 |
|
|
| Sister |
Fernandez de Castro, Elvira |
1229 |
|
|
| Brother |
Fernández de Castro y Mendoza, Esteban |
1230 |
about 1291 |
|
| Sister |
Fernandez de Castro, Elio |
1230 |
|
|
| |
Fernandez de Castro Mendoza, Sancha |
1230 |
|
|
| Sister |
Fernandez de Castro Iñiguez de Mendoza, Teresa |
1260 |
|
|