From the neighbourhood of Badajoz it forms the boundary between Spain and Portugal as far as a point near Monsaraz, where it receives the small river Priega Munoz on the left, and passes into Portuguese territory, with a southerly direction.
Combebiac, Calcul des triquaternions (Paris, 1902); Don Francisco Perez de Munoz, Introduction al estudio del cdlculo de Cuaterniones y otras Algebras especiales (Madrid, 1905); A.
AUGUSTIN FERNANDEZ MUNOZ RIANSARES, DUKE OF (1808 or 1810-1873), morganatic husband of Maria Christina, queen and regent of Spain, was born at Tarancon, in the province of Cuenca, in New Castile.
By publishing her marriage, Maria Christina would have forfeited the regency; but her relations with Munoz were perfectly well known.
When on the 13th of August 1836 the soldiers on duty at the summer palace, La Granja, mutinied and forced the regent to grant a constitution, it was generally, though wrongly, believed that they overcame her reluctance by seizing Munoz, whom they called her "guapo," or fancy man, and threatening to shoot him.
When in 1840 the queen found her position intolerable and fled the country, Munoz went with her and the marriage was published, and on the overthrow of Espartero in 1843 the couple returned.
Munoz was created duke of Riansares and made a knight of the Golden Fleece.