The first session of the 1st Parliament of King James I (the 'Blessed Parliament') which met from 19 March 1604 until 7 July 1604.
This session was traditionally cited as 1 Jac. 1, 1 Ja. 1, 1 J. 1, 2 Jas. 1, 2 Jac. 1, 2 Ja. 1, 2 J. 1, 1 & 2 Jas. 1, 1 & 2 Jac. 1, 1 & 2 Ja. 1 or 1 & 2 J. 1.