Date and order of birth There is some disagreement concerning the order of birth of Sancho III's sons, and of Ferdinand's place among them. He was certainly a younger son, and he was probably born later than 1011, by which date his parents are known to have married.Martínez Díez 2007, 151–53. Most, and the most reliable, charters name Sancho's sons in the order Ramiro, García, Gonzalo, then Ferdinand. Three documents from the Cathedral of Pamplona list them in this way,Martínez Díez 2007, 152. They are, by date: 7 April 1014, albeit improperly dated (Ranimirus, proles regis, confirmat. Garseanus, frater eius, confirmat. Gundisaluus, frater eius, confirmat. Fernandus, germanus eius, confirmat.); 21 October 1022 (Garsias et Ranimirus, Gundesalbus et Fernandus, testes.); and 1033 (in presencia de filios regis pernominatos Ranimirus, Garseanus, Gundesaluus, Fredinandus), found in Jaime Goñi Gaztambide, Colección diplomática de la catedral de Pamplona (829–1243) (Pamplona: 1997), docs. 5, 7, 12. as well as four from the monastery of San Juan de la Peña.Martínez Díez 2007, 152. Although all of these one contain anachronisms, they are not entirely worthless. They are: two dated 21 April 1028, one of 1030, and one from 5 April 1031, found in Antonio Ubieto Arteta, Cartulario de San Juan de la Peña, I (Valencia: 1962), docs. 47–48, 51, 56. One charter from Pamplona, dated 29 September 1023, is witnessed by Sancho's mother, Jimena Fernández, his wife Muniadona, her children, listed García, Ferdinand then Gonzalo, and their brother, the illegitimate Ramiro.Martínez Díez 2007, 152: Sunt testes: Eximina regina et mater regis, regina dompna Maiora cum filiis suis dompno Garsia et Fredinando et Gundesalbo et fratre eorum Ranimiro in Goñi Gaztambide 1997, doc. 8.
date and order of birth there is some disagreement concerning the order of birth of sancho iii's sons and of ferdinand's place among them he was certainly a younger son and he was probably born later than 1011 by which date his parents are known to have marriedmartínez díez 2007 151–53 most and the most reliable charters name sancho's sons in the order ramiro garcía gonzalo then ferdinand three documents from the cathedral of pamplona list them in this waymartínez díez 2007 152 they are by date 7 april 1014 albeit improperly dated (ranimirus proles regis confirmat garseanus frater eius confirmat gundisaluus frater eius confirmat fernandus germanus eius confirmat); 21 october 1022 (garsias et ranimirus gundesalbus et fernandus testes); and 1033 (in presencia de filios regis pernominatos ranimirus garseanus gundesaluus fredinandus) found in jaime goñi gaztambide colección diplomática de la catedral de pamplona (829–1243) (pamplona 1997) docs 5 7 12 as well as four from the monastery of san juan de la peñamartínez díez 2007 152 although all of these one contain anachronisms they are not entirely worthless they are two dated 21 april 1028 one of 1030 and one from 5 april 1031 found in antonio ubieto arteta cartulario de san juan de la peña i (valencia 1962) docs 47–48 51 56 one charter from pamplona dated 29 september 1023 is witnessed by sancho's mother jimena fernández his wife muniadona her children listed garcía ferdinand then gonzalo and their brother the illegitimate ramiromartínez díez 2007 152 sunt testes eximina regina et mater regis regina dompna maiora cum filiis suis dompno garsia et fredinando et gundesalbo et fratre eorum ranimiro in goñi gaztambide 1997 doc 8