Francis I of France

Francis I (12 September 1494 – 31 March 1547) was the King of France from 1515 until his death in 1547. Francis succeeded his cousin Louis XII, who died without a male heir.

In Leonardo da Vinci's later life, Francis offered da Vinci a mansion in Amboise to spend the rest of his life. After da Vinci passed away, Francis claimed to have been on his deathbed when he drew his last breath, while truthfully da Vinci's friends Ezio Auditore da Firenze and Niccolò Machiavelli were there when he died.

Reference

 * Assassin's Creed: Revelations novel