Sentence:  He beareth two "coats quarterly", with an "Inſcocheon" of pretence, "viz." The firſt, "per bend nebulee", Or "and" Sable, a "Lion Rampant" counterchained, by the name of "Sympſon"; The ſecond, Argent, a "Feſſe", Gules, between three <WSD>"Merlions</WSD>", or "Sparhawks", Sable, beaks and legs, Or, by the name of "Oneſlow"; ... 
Meaning of the word marked with <WSD> tags:  (heraldry)  A depiction of a bird similar to a house martin or swallow with stylized feet; a martlet. (from late 15th c.)