Nielsen Hayden genealogy
Descendants of Sancha of Castile, Queen Consort of Navarre
Abt 1139 - 1179 (~ 40 years)Father: Alfonso VII, King of Leon and Castile (1 Mar 1105 Caldas de Reyes, Pontevedra, Galicia, Spain - 21 Aug 1157 Fresneda, Teruel, Aragón, Spain)
Mother: Berenguela of Barcelona (Abt 1114 - 15 Jan 1149 Palencia, Castile, Spain)
Sancha of Castile, Queen Consort of Navarre (Abt 1139 - 1179 bur.Pamplona Cathedral, Pamplona, Spain)
Sancho VI, King of Navarre (21 Apr 1132 - 27 Jun 1194 bur.Pamplona Cathedral, Pamplona, Spain)(m. 1157)
   ├─ Berengaria of Navarre, Queen Consort of England (Between 1165 and 1170 - 23 Dec 1230)
   │ + Richard I, King of England (8 Sep 1157 - 6 Apr 1199 bur.Fontévrault Abbey, near Chinon, Anjou, France)
   │ (m. 12 May 1191)
   │ (m. 12 May 1191)
   └─ Blanca de Navarre (Aft 1177 - 1229)
    Thibaut III of Champagne (13 May 1179 - 24 May 1201)
       └─ Thibaut IV and I, King of Navarre (Abt 30 May 1201 - Abt 7 Jul 1253 Pamplona, Navarre, Spain)
        Agnès de Beaujeu ( - 11 Jul 1231)(m. 1222)
        :    + Jean I (1217 - 8 Oct 1286)(m. 16 Jan 1235)
        Marguerite de Bourbon (Abt 1211 - 12 Apr 1256)(m. 12 Sep 1232)
           ├─ Enrique I, King of Navarre ( - Abt 22 Jul 1274 Pamplona, Navarre, Spain) =>
           │ + Blanche of Artois (Abt 1248 - 2 May 1302 Paris, France)(m. 1269)
            + Frédéric III (1238 - 31 Dec 1303)(m. 1255)