Other authors criticize the modern notion of Al-Andalus being a tolerant society of equal opportunities for all religious groups as a "myth". Jews were living in an uneasy coexistence with Muslims and Catholics, and the relationship between the groups was more often than not marked by segregation and mutual hostility. In the 1066 Granada massacre of much of the Jewish population of the city, the Jewish death toll was higher than in the much-publicized Christian pogromes in the Rhineland slightly later. The notable Jewish philosopher Moses Maimonides (1135–1204) was forced to flee from Al-Andalus to avoid conversion by the Almohads. In "Letter to Yemen", Maimonides wrote: