Henry II was ultimately responsible although four knights did the deed.
Henry had been having arguments with the church for many years, and decided to install Thomas a'Beckett, formerly Lord Chancellor and a close and trusted friend as archbishop of Canterbury. He thought having his friend, as the most senior clergyman would bring the church onside. However this didn't workout as Henry planned and as Archbishop a'Beckett favoured the church over the royal family. This culminated in Henry's young son being crowned not by the archbishop but by the archbishop of York and the bishops of London and Salisbury. It was a practice then to crown the successor king while the old king was alive - this gave the successor legitimacy in the event of a power struggle if the king died before his heir was strong enough in his own right. Thomas a'Beckett had the three bishops ex-communicated and refused to recognise the new king (called Henry the younger king).
Henry II is supposed to have loudly said, "Who will rid me of this turbulent priest", although there are variations on what he actually said, and consequently the four knights listed above sailed for England and rode to Canterbury cathedral. Finding him there they killed him.
Who was responsible for Thomas a’Becketts death?
Henry II was ultimately responsible although four knights did the deed.
Henry had been having arguments with the church for many years, and decided to install Thomas a'Beckett, formerly Lord Chancellor and a close and trusted friend as archbishop of Canterbury. He thought having his friend, as the most senior clergyman would bring the church onside. However this didn't workout as Henry planned and as Archbishop a'Beckett favoured the church over the royal family. This culminated in Henry's young son being crowned not by the archbishop but by the archbishop of York and the bishops of London and Salisbury. It was a practice then to crown