A young teacher, expert in everything you can find under this name. To prove this, here is reported the sentence of the sorting hat of the Hogwart's School.

Af all the houses, four are in Hogwart's school
Gryffindor high in the sky, with golden plumes
Ravenclaw fast and light take you to the right
Hufflepuff because we know, that its laugh is not the last
Slytherin it's true that good and bad stay in every side
just only one person can be in all of them
Ruggialdi its name, and I shall say
that in him all the matters found their way