During Lord Alyn's attack on the Braavosi fleet during the Daughters' War, Grand Defiance fought past six Velaryon ships to gain the open sea beyond the Stepstones. Lord Alyn Velaryon's flagship, Queen Rhaenys, struck the dromond's side with its prow "like a great oaken fist", however, cutting it in two. Grand Defiance quickly sank when Queen Rhaenys rowed away. The sinking of the dromond gave Alyn the nickname of Oakenfist.
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