Yuen Kay San (阮奇山), or Yuen the 5th combined the Wing Chun of both of his teachers, famed constable Fok Bo Chuen, who was feared for his use of the Double Swords and Throwing darts, and Body guard and Bounty Hunter Fung Siu Ching, known as one of the founders of the Look Dim Boon Gwun and master of Kum Na , Sot Gow, and close body methods. He passed his entire system to his only diciple Sum Num.

System :

• Lien Wan Kau Da
• Jin Choi
• Siu Lim Tao (Little Training Set)
• Cham Kiu (Sinking the Bridge)
• Biu Jee (Thrusting Finger's)
• Muk Yan Jong (Wooden Dummy)
• Luk Dim Poon Kwam (6,5 Pole)
• Yee Jee Yeung Dit Ming Dao (2 Life ending Knives)

If you want to read more about his life : http://fr.wikipedia.org/wiki/Yuan_Kay-shan

Source : www.wingchunpedia.org