Organisers today praised Armstrong as an international reference point for her comparative studies of Islam, Christianity and Judaism.
A holder of the Order of the British Empire title, Armstrong's works include the bestselling "The Battle for God: Fundamentalism in Judaism, Christianity and Islam" and "Holy War: The Crusades and Their Impact on Today's World."
The 50,000-euro (USD 56,000) award is one of eight Asturias prizes handed out yearly by a foundation named for Crown Princess Leonor.
Others categories include art, sports and scientific research. They are presented each fall.
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