Who was the authoe of poem Sir Hoggie and Fairies?

The poem "Sir Hoggie and the Fairies" is attributed to William Motherwell, a Scottish poet, writer, and antiquary.

He published the poem in his 1827 collection "Minstrelsy, Ancient and Modern".

It is believed that Motherwell might have adapted the poem from an earlier oral tradition, but there is no concrete evidence to support this claim.