Wenlock is named after Much Wenlock, a village in Shropshire which held an event in the 19th century which inspired the modern Games. Mandeville is named after the hospital at which the Paralympic Games were founded. Here is a link to read some more about them http://sports.yahoo.com/olympics/vancouver/blog/fourth_place_medal/post/London-unveils-creepy-looking-mascots-for-2012-O?urn=oly,242206
