Conversation so far:
When did Walter Scott begin Walter Scott's baronetcy?
CANNOTANSWER.
What does the Recovery of the Crown Jewels mean?
Prince Regent (the future George IV) gave Scott permission to conduct a search for the Crown Jewels.
Where did Scott find the Crown Jewels?
large locked box in which they were stored was not opened for more than 100 years, and stories circulated that they had been "lost" or removed.
How was Scott rewarded for recovering the Crown Jewels?
A grateful Prince Regent granted Scott the title of baronet, and in March 1820 he received the baronetcy in London, becoming Sir Walter Scott, 1st Baronet.
What kind of ceremonial pageantry is associated with Scott?
spectacular and comprehensive pageant, designed not only to impress the King, but also in some way to heal the rifts that had destabilised Scots society.
What rifts had destabilised Scots society?
This form of dress, proscribed after the 1745 rebellion against the English, became one of the seminal, potent and ubiquitous symbols of Scottish identity.

Question: What form of dress became one of the seminal, potent and ubiquitous symbols of Scottish identity?
Self-contained rewrite: What form of dress became one of the seminal, potent and ubiquitous symbols of Scottish identity?