Complex sentence: George tells Ella his plans, and she openly disagrees, reminding George of what happened to Nazir, but George takes no notice, again insisting that Nazir is dead and the children have no right whatsoever to disagree with him.
Split into simpler sentences: George tells Ella his plans, and she openly disagrees, reminding George of what happened to Nazir. But George takes no notice, again insisting that Nazir is dead and the children have no right whatsoever to disagree with him.