For those of you still playing along with our "Six degrees of Shakespeare" game at home, that makes him William Shakespeare's cousin, using Elizabethan kinship systems.
Robert Catesby was also related to the Shakespeares, by the way. On the Arden side, if I remember correctly, although I'm not sure I have my details straight.
Those of you who know your British History 1600-1605 are now shaking your heads in the same delight I keep feeling about the amazing spiderweb of coincidence and relationship that is Elizabethan and Jacobean history. I'm reasonably sure, actually, that there were only 200 people in London in 1599, and that they were all related.
This makes my job a lot easier, in some ways.