Tokugawa Descendant Marries Vietnamese Woman

You sure about the “direct male descendent” bit? The Tokugawa line ran out of direct heirs a few times in its history, leaving them to bring in heirs from the other Three Families (go-sanke: 御三家), and sometimes the heir was a brother or a cousin rather than a son. The last Shogun, Yoshinobu, for example, was from the Mito Tokugawa house, adopted from the Hitotsubashi family. This “Nineteenth Head” presumably refers to the ‘official’ head of the family rather than Ieyasu’s nineteenth direct bloodline generation (which probably does exist, through his other children and grandchildren who did not inherit the Shogunate). Last I heard, the Tokugawa head was working in a shipping company, so presumably this is him.

Actually, looking up Wikipedia, it might be this guy: Tokugawa Iehiro.
http://ja.wikipedia.org/wiki/%E5%BE%B3%E5%B7%9D%E5%AE%B6%E5%BA%83
According to that, he’s a translator, born 1965, and worked for a while in Vietnam (and isn’t the head yet, as his father is still alive). A descendent of Ieyasu, probably, but like the Emperors, or the Kings and Queens of England, descended through rather a wiggly line….

ha you just have to look at the royal family on britain to realize how screwed up things can get as the current head of the family has more to do with germany than british!