How did the Duke of Buckingham support William Laud’s rise in influence?

The Duke of Buckingham, who served as a powerful royal favourite to both King James I and King Charles I, played a pivotal role in William Laud’s ecclesiastical advancement. During the years of Buckingham's political dominance, Laud served as his chaplain and confidant.1

Through this close association and patronage, Laud was able to secure a succession of important ecclesiastical appointments, eventually establishing a dominant voice in church policies and appointments. This relationship was significant enough that Laud’s long-standing rival, John Williams, also sought advancement through Buckingham’s influence, highlighting the Duke's central role in determining the careers of high-ranking churchmen during that era.1