Question: Khalid al-Aruri is married to a sister of what man sometimes known as Shaykh of the slaughterers?
Sentence (from "Nannina de' Medici"): Nannina de' Medici (14 February 1448 – 14 May 1493), born Lucrezia de' Medici, was the second daughter of Piero di Cosimo de' Medici and Lucrezia Tornabuoni.
Relevant evidence: No