I see Trier also has the grave tale in totem, here.

BTW, Google also tells me that there was a recitation in Neuruppin in 2016. See, they still love you there, Fritz. To the point of reciting your poetry.

Valori shows up quite a lot in Lehndorff's diaries (unsurprisingly, since he was friends with the princes), and our diarist likes him a lot. Must check whether there are any comments about the poem.