Monk of St. Germain de los Prados, called by the Encorvado nickname (in latin Abbo cernnus), that he/she was born around the year 850 and died in 923. He/She made Latin verses that resist of the barbarity of his time, which tells the site that Paris was subjected by the Normans at the end of the 9th century (De bello Parisiacae Urbis). Abbon knew personally that site, which lasted from October of the year 886 until February of the 887. If it is not a good poet, it is at least one accurate historian. His piety attributed the successes of the army of Parisians to the relics of San Vicente, St. Germain and St. Genevieve.