I have 2 albums by US band Gandalf (they formed in 1965, recorded first album in 1967 and disbanded in 1968).
Roon identifies them as Hein Strobl (who also records under the name Gandalf). The description correctly says that he has “issued countless albums on a steady basis since 1980”. However, he is shown as having been born in 1967 and died in 1968!
Looks like Roon’s metadata is mixing together details from two artists both with the same name.