a new poll by yougov ahead of charles and camilla 's 10th wedding anniversary reveals that 49 per cent think camilla should take the traditional title of the wife of a reigning king , while 35 per cent believe she should be given a lesser title out of respect to diana , princess of wales and 16 per cent were undecided .
when the prince and camilla became engaged in february 2005 , only 7 per cent of people polled by yougov thought camilla should one day be queen .