How many letters does the top answer for “author of history of the prophets and kings” have?

The most common answer is altabari (8 letters).

Crossword clue: author of history of the prophets and kings

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

altabari 8 letters wd-fact-v3

author of the history of the kings of britain 60% similar → monmouth

wrote history of the prophets and kings 60% similar → altabari

author of the king and i 50% similar → rodgers

author of the prophet 50% similar → gibran