Help identifying a piano piece

[sonoro]

I came across a small piano piece on youtube that caught my interest, but I haven't a clue what piece it is. Does anyone know?
https://www.youtube.com/watch?v=3I_a_D0tYBc

[jimfaston]

I came across a small piano piece on youtube that caught my interest, but I haven't a clue what piece it is. Does anyone know?
https://www.youtube.com/watch?v=3I_a_D0tYBc

It's the Prayer from Olav Trygvason by Grieg.

[sonoro]

Thank you so much!