The Collaborative International Dictionary of English v.0.48:

Jacobean \Ja*co"be*an\ (?; 277), Jacobian \Ja*co"bi*an\, a.
   [From L. Jacobus James. See 2d Jack.]
   Of or pertaining to James the First, of England, or of his
   reign or times; especially, pertaining to a style of
   architecture and decoration popular in the time of James I.;
   as, Jacobean writers. "A Jacobean table." --C. L. Eastlake.
   [1913 Webster + WordNet 1.5]