Go to Taliesin, ask him Knight.
Help a peasant
Go to The Tavern at Folkington, buy a goblet of ale.
Hunt the thirsty peasant, give him the goblet.
Huge boar
Hunt Cymru, Kill boar.
Visit the site of Arthurs most famous battle.
North west and up from Salsbury plains.
Bless the Relics
Hunt archbishop, ask him bless
Investigate Ferry
Ask the ferry dude at The shores of the Severn Sea help, he will ask you to find his daughter, go north to the fort ask daughter help, she will ask you to rescue her, kill the 3 drunk breton soldiers, she will follow, take her back to the ferryman.
Help Owain
Hunt Owain, go east, kill giant. Jobs done.
Repair the mill
Go to Folkington mill, ask miller help, he will ask you to get his tools back, ask him pookah, he will tell you it shows up at night (~12) at the Celtic Stones, kill the wolf pookah, a spriggan will steal the tools, go sswn, there will be a corpse. Kill the Saexin guys. Get the toolbag off their corpse. Return to the miller, give him the toolbag.
Repair relationships
Go to Castle Sauvage, ask Oberon help, he will ask you to help, agree to, take the treaty he gives you north westish to A Stone Circle, push the capstone to get to the underhill, fight your way to the queen and hand her the treaty.
Tournament
Go to the Tournament Grounds (eastish from the Stone Circle above), ask audience help, bow audience, fight the 4 knights that appear - be fast, they spawn rapidly.
Rescue Changelings
Go to the winter court (see above) find the changeling (2n after pushing stone) ask changeling help, go to the queen, ask her prisoners, she will GIVE you the key, do NOT kill her, she junks the key. Return to the changeling, unlock cage.
Return to Taliesin, ask him quest.
He will tell you to go to the Archbishop of Glastonbury,
Ask Arhcbishop Knighthood,
Kneel when Arthur tells you to.
Congradulations!