In the year 132 of the Fifth Age, King Arthur and the Knights of the Round Table came to Gielinor from another world. Once there, they realised they were in need of a castle. King Ulthas, the king of Kandarin at the time, met with Lord Sinclair and discussed King Arthur's plight. Sinclair decided that he would give his castle to King Arthur and relocate himself and his family to a large mansion in the north, near the southern border of the Fremennik Province. He renamed the mansion Sinclair Mansion. King Arthur, meanwhile, renamed the castle Camelot.