From Chapter 2:
When Robert, Earl of Essex, and Henry, Earl of Southampton, were tried for high treason in Westminster Hall on February 19, 1600-1, the members of the House of Lords, who with the Judges formed the Court, if we may believe the French Ambassador of the time, behaved in a remarkable and unseemly manner. In a letter to Monsieur de Rohan, the Ambassador declared that while the Earls and the Counsel were pleading, their lordships guzzled and smoked; and that when they gave their votes condemning the two Earls, they were stupid with eating and "yvres de tabac"—drunk with smoking. This was probably quite untrue as a representation of what actually took place; but it would hardly have been written had smoking not been a common practice among noble lords.

From Chapter 5:
Clouds were blown under archiepiscopal roofs. At Lambeth Palace one Sunday in February 1672 John Eachard, the author of the famous book or tract on "The Contempt of the Clergy," 1670, which Macaulay turned to such account, dined with Archbishop Sheldon. He sat at the lower end of the table between the archbishop's two chaplains; and when dinner was finished, Sheldon, we are told, retired to his withdrawing-room, while Eachard went with the chaplains and another convive to their lodgings "to drink and smoak."