Question: Who established the advisory board that developed the first ironclad warship? 
Sentence (from "Sir William Martin, 4th Baronet"): Admiral Sir William Fanshawe Martin, 4th Baronet, {'1': ", '2': ", '3': ", '4': "} (5 December 1801 – 24 March 1895), was a Royal Navy officer.
Relevant evidence: No