Ralph II, Count of Vermandois

Ralph II, known as the Younger and the Leper, was the count of Vermandois and Valois from 1152 to 1167. Ralph was the son of Ralph I, whom he succeeded, and Petronilla of Aquitaine. Around 1160 he married Margaret of Alsace. He began suffering from leprosy around 1163, his marriage could not be consummated and was broken up. Having no descendants, he abdicated in favor of his sister Elisabeth and her husband Philip in 1167.