ious ▁special ists ▁from ▁Spain ▁in ▁the ▁late ▁medieval ▁period ▁in ▁the ▁Crown ▁of ▁Cast ile . ▁ ▁He ▁is ▁father ▁of ▁the ▁novel ist ▁Jul io ▁Val de ón ▁Blan co . ▁ ▁He ▁died ▁in ▁Vall ad olid ▁on ▁ 2 1 ▁June ▁ 2 0 0 9 . ▁ ▁Awards ▁ ▁In ▁February ▁ 2 0 0 2 ▁he ▁received ▁the ▁honor ▁of ▁Cast ile ▁and ▁León ▁Award ▁for ▁Social ▁Sciences ▁and ▁Human ities ▁" in ▁recognition ▁of ▁research ▁work ▁on ▁the ▁medieval ▁past , ▁and ▁permanent ▁teachers ▁and ▁gener ous ▁disposition ". ▁ ▁In ▁ 2 0 0 4 ▁he ▁received ▁the ▁National ▁History ▁Award ▁of ▁Spain ▁for ▁his ▁work ▁Alfonso ▁X : ▁la ▁for ja ▁de ▁la ▁España ▁modern a . ▁() ▁ ▁Works ▁ ▁() ▁La ▁muerte ▁y ▁el ▁más ▁all á : ▁Ed ad ▁Media ▁n . º ▁ 6 ▁Universidad ▁de ▁Vall ad olid . ▁Secret ari ado ▁de ▁Public aciones ▁e ▁Inter c amb io ▁Editor ial , ▁ 2 0 0 4 . ▁() ▁La ▁Al ta ▁Ed ad ▁Media G ru po ▁An aya , ▁S . A ., ▁ 2 0 0 3 . ▁() ▁La ▁España ▁medieval ▁Act as , ▁S . L ., ▁ 2 0 0 3 . ▁() ▁Alfonso ▁X : ▁la ▁for ja ▁de ▁la ▁España ▁modern a ▁Ed iciones ▁Tem as ▁de ▁Ho y , ▁S . A ., ▁ 2 0 0 3 . ▁() ▁El ▁ret orno ▁de ▁la ▁bi ografía ▁: ▁Ed