Complex sentence: In January 1649 he was appointed to sit as a commissioner at the Trial of Charles I and sat for a total of six sessions and unlike his elder brother Thomas Chaloner he did not sign the royal death warrant.
Split into simpler sentences: In January 1649 he was appointed to sit as a commissioner at the trial of Charles I and sat for a total of six sessions. Unlike his elder brother Thomas Chaloner, he did not sign the royal death warrant.