Nielsen Hayden genealogy
Ancestors of Alfonso V, King of Leon
Abt 996 - 1027 (~ 31 years)
┌── Alfonso III, King of Asturius, Galicia, & Leon 
(848 - 20 Dec 910) =>
(848 - 20 Dec 910) => ┌── Ordoño II, King of Asturias, Galicia, & Leon (Abt 873 - Jan 924)
(Abt 873 - Jan 924) │ (m. Between 890 and 900)
│ └── Jimena ( - Bef Jun 912)
( - Bef Jun 912) │
┌── Ramiro II, King of Leon (Abt 900 - 1 Jan 951)(m. Abt 925)
(Abt 900 - 1 Jan 951)(m. Abt 925) │ │
│ │ ┌── Hermenegildo Guterres (Abt 850 - ??) =>
(Abt 850 - ??) => │ └── Elvira Menendez ( - Abt Oct 921)(m. Between 890 and 900)
( - Abt Oct 921)(m. Between 890 and 900) │ └── Hermesinda Gatonez
│
┌── Ordono III, King of Leon (Abt 926 - Between 30 Aug 955 and 13 Nov 955)(m. 951)
(Abt 926 - Between 30 Aug 955 and 13 Nov 955)(m. 951) │ │
│ │ ┌── Gutierre Osorez ( - Abt 941)
( - Abt 941) │ └── Adosinda Gutièrrez (m. Abt 925)
(m. Abt 925) │ │
│ │ ┌── Hermenegildo Guterres (Abt 850 - ??) =>
(Abt 850 - ??) => │ └── Ildoncia Menendez ( - 942)
( - 942) │ └── Hermesinda Gatonez
│
┌── Bermudo II, King of Galicia & Leon ( - Sep 999)(m. Nov 991)
( - Sep 999)(m. Nov 991) │ │
│ │ ┌── Gonzalo Fernandez (Abt 870 - Aft 920)
(Abt 870 - Aft 920) │ │ ┌── Fernán González (Abt 910 - Jun 970 bur.San Pedro of Arlanza, Hortigüela, Burgos, Spain)
(Abt 910 - Jun 970 bur.San Pedro of Arlanza, Hortigüela, Burgos, Spain) │ │ │ (m. Abt 932)
│ │ │ │
│ │ │ │ ┌── Nuño Ordoñez
│ │ │ └── Muniadona Nuñez ( - Aft 5 Aug 935)
( - Aft 5 Aug 935) │ │ │
│ └── Urraca Fernandez ( - Aft 1007)(m. 951)
( - Aft 1007)(m. 951) │ │
│ │ ┌── Sancho Garcés I "Abarca", King of Navarre (Abt 865 - 11 Dec 925)
(Abt 865 - 11 Dec 925) │ └── Sancha Sanchez de Navarre (Aft 900 - Dec 959)(m. Abt 932)
(Aft 900 - Dec 959)(m. Abt 932) │ │
│ │ ┌── Aznar Sanchez de Larraun ( - 893)(m. 880) =>
( - 893)(m. 880) => │ └── Toda Aznárez (Abt 885 - Aft 970)
(Abt 885 - Aft 970) │ └── Oneca Fortun (Abt 847 - ??)(m. 880) =>
(Abt 847 - ??)(m. 880) => │
Alfonso V, King of Leon (Abt 996 - 1027 bur.Monastery of San Isidoro, León, Spain)
│
│ ┌── Gonzalo Fernandez (Abt 870 - Aft 920)
(Abt 870 - Aft 920) │ ┌── Fernán González (Abt 910 - Jun 970 bur.San Pedro of Arlanza, Hortigüela, Burgos, Spain)
(Abt 910 - Jun 970 bur.San Pedro of Arlanza, Hortigüela, Burgos, Spain) │ │ (m. Abt 932)
│ │ │
│ │ │ ┌── Nuño Ordoñez
│ │ └── Muniadona Nuñez ( - Aft 5 Aug 935)
( - Aft 5 Aug 935) │ │
│ ┌── Garcia Fernandez (Abt 938 - Between 18 Apr 995 and 19 Jul 995)
(Abt 938 - Between 18 Apr 995 and 19 Jul 995) │ │ │
│ │ │ ┌── Sancho Garcés I "Abarca", King of Navarre (Abt 865 - 11 Dec 925)
(Abt 865 - 11 Dec 925) │ │ └── Sancha Sanchez de Navarre (Aft 900 - Dec 959)(m. Abt 932)
(Aft 900 - Dec 959)(m. Abt 932) │ │ │
│ │ │ ┌── Aznar Sanchez de Larraun ( - 893)(m. 880) =>
( - 893)(m. 880) => │ │ └── Toda Aznárez (Abt 885 - Aft 970)
(Abt 885 - Aft 970) │ │ └── Oneca Fortun (Abt 847 - ??)(m. 880) =>
(Abt 847 - ??)(m. 880) => │ │
└── Elvira Garcia (Abt 973 - Dec 1017)(m. Nov 991)
(Abt 973 - Dec 1017)(m. Nov 991) │
│ ┌── Bernardo I
│ ┌── Raimundo II ( - Aft 970)
( - Aft 970) │ │ │
│ │ │ ┌── Galindo II Aznarez (Abt 870 - 922) =>
(Abt 870 - 922) => │ │ └── Toda Galindez de Aragon
│ │ └── Acibella Garcés =>
=> │ │
└── Ava of Ribagorza ( - Aft 995 bur.San Pedro de Cardena, Castrillo del Val, Burgos, Spain)
( - Aft 995 bur.San Pedro de Cardena, Castrillo del Val, Burgos, Spain)