Louis Halphen, 1911 Encyclopedia Britannica (1911)
“ In the second quarter of the 10th century Fulk the Red had already usurped the title of count, which his descendants kept for three centuries. He was succeeded first by his son Fulk II. the Good (941 or 942–c. 960) , and then by the son of the latter, Geoffrey I. Grisegonelle (Greytunic) (c. 960–21st of July 987) , who inaugurated a policy of expansion, having as its objects the extension of the boundaries of the ancient countship and the reconquest of those parts of it which had been annexed by the neighbouring states ”
