Master Sun De Long is Master Sun De Yao's older brother.
There is no direct link to their lineage but you can go to the following:
http://www.wutangcenter.com/wt/index.html
Masters--->Sun De Yao--->lineage
Master Sun De Long has been visiting (his brother, Sun De Yao is currently with us) at our Center for awhile and for those of you interested in the authentic taiji meihua tanglangquan its a seminar well worth your money.
Also if anyone is interested in sponsoring Master Sun De Yao for seminars, please contact us at the center. A lot of people have really enjoyed his two hand tanglangquan sword among other material.
"Its better to build bridges rather than dig holes but occasionally you have to dig a few holes to build the foundation of a strong bridge."
"Traditional Northern Chinese Martial Arts are all Sons of the Same Mother," Liu Yun Qiao