David's date of birth is unknown, but it was about 1,500 years ago.
He was born on the Pembrokeshire cliffs during a fierce storm. Legend has it he was the son of Sant (aka Sanctus), king of Ceredigion and a nun called Nonnita (Non). Though this has been dismissed by historians who instead say he descended from Welsh royalty. In medieval times people thought he descended from King Arthur.
David became a monk at a young age and is said to have founded a monastery close to where he was born. This area is now known as St Davids.
The Cathedral and St David's Bishop's Palace are built on the site of the original monastery according to historians.
There are many stories about the saint, from tales about him raising the dead to myths about milestones in his life being marked by springs of water appearing.
So what do we actually know? St David was made an archbishop later in life.
The legend passed down is that when the decision was made a great crowd gathered. When David stood up to speak, one of those gathered shouted: "We won't' be able to see or hear him.'
At that instant, the ground rose until everyone can see or hear him.
David is said to have died on March 1, 589 AD at 100-years-old.
St Davids