This 13th-century chapel is dedicated to St Thomas Becket, the Archbishop of Canterbury murdered in 1170.
Henry II came to the Cathedral in 1171 to hear Mass and this chapel seems to have been built soon afterwards. It is one of the oldest chapels in the Cathedral and is regularly used for worship and quiet prayer.
It was completely remodelled by Bishop Gower in the 14th century (the chapel retains its 14th century ceiling and is part of a three-storey structure). Situated above the chapel is the Cathedral Library.
The Chapel retains an Early English double piscina from the original chapel of the martyr.
