Roger wrote a post on Neo Regency Men's Hairstyles for the Hairstyler.com. Below are his descriptions of the Prince Regent's hairstyle and the modern version of it.
The Real Deal: King George IV had cool Regency hair. Check it out: it's typical of the period in so far as it's cropped quite short and has a distict wind-blown look about it... his hair's all combed forward onto the forehead and kind of tousled. I guess the bangs are the central element and they're cut at brow length with plenty of texture.
To read the rest of the article, go to this link.