Also anagramed into several Stephen King stories. In King's impossible to read Dark Tower series, the hero is Roland of Gilead.
Roland is an anagram for Randol
"Roland of" is an anagram for Randolfo
Even more obviously is the father of the boy David Carver in Desperation, Ralf Carver. The name David Carver is full of symbolic meaning, especially on the author's rumination on his roots of ripping off Lovecraft.