How many letters does the top answer for “a delegate or deputy; especially, the pope's nuncio or legate at constantinople.” have?

The most common answer is apocrisiarius (13 letters).

Crossword clue: a delegate or deputy; especially, the pope's nuncio or legate at constantinople.

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

apocrisiarius 13 letters web-def

A delegate or deputy; especially, the pope's nuncio or legate at Constantinople.

apocrisiary 11 letters web-def

A delegate or deputy; especially, the pope's nuncio or legate at Constantinople.