Conversation so far:
Who were the librettists?
CANNOTANSWER.
What did they do?
He was highly demanding and bad-tempered, unable to maintain longstanding partnerships with his librettists, with the exception of Louis de Cahusac.
How long was Louis with him?
Louis de Cahusac, who collaborated with him on several operas, including Les fetes de l'Hymen et de l'Amour (1747), Zais (1748), Nais (1749), Zoroastre (1749; revised 1756).

Question: Were there any other notable librettists?
Self-contained rewrite: Besides Louis de Cahusac, were there any other notable librettists?