Did Uthman ibn Affan (may Allah be pleased with him) give the nation's money to Marwan ibn al-Hakam?

The questioner did not complete his question, but among the slanders that the Khawarij and the ignorant leveled against Uthman ibn Affan, may Allah be pleased with him, was that he favored his family with money from the public treasury. Among these claims was that he gave 400,000 dinars to four men from Quraish whom he married to his daughters, and that he gave Marwan 1,000,000 dinars. Sheikh al-Islam Ibn Taymiyyah refuted this slander in "Minhaj as-Sunnah an-Nabawiyyah," and Dr. Muhammad al-Sallabi also addressed it in his book "Tayseer al-Kareem al-Mannan fi Sirat Uthman ibn Affan."