TY - CHAP AU - Martín Viso, Iñaki PY - 2024 SN - 979-12-215-0416-3 UR - http://hdl.handle.net/10366/160294 AB - The Islamic conquest of the kingdom of Toledo brought about the disappearance of central authority in certain regions of the Iberian Peninsula. This is what happened on the Duero Plateau, which, between the eighth century and the mid-ninth century,... LA - eng KW - Middle Ages KW - 8th centyry KW - 9th century KW - Iberian Peninsula KW - Duero Plateau KW - Al-Andalus KW - Frontier KW - Edad Media KW - Siglo VIII KW - Siglo IX KW - Península Ibérica KW - Asturias KW - Frontera KW - Meseta del Duero KW - History, Medieval TI - A blurred frontier: the territories between the kingdom of Asturias and al-Andalus (eighth and ninth centuries) ER -