Who is Khondamir from Beneath a Marble Sky: A Novel of the Taj Mahal and what is their importance?

Khondamir is Jahanara's husband, chosen for her by her parents because of his vast wealth and trading connections. He quickly shows himself to be cruel, uncaring, and vengeful. Jahanara feels little remorse when she falls in love with Isa and is unfaithful to who she considers to be a pig of a man.