The Amsterdam ship Hollandia at the Four Days Battle

Apparently, the Hollandia (built in 1665), which served as Cornelis Tromp's flagship at the Four Days Battle, was armed as if it were a three-decker. The waist was unarmed, however, so she didn't have three full tiers. her real dimensions seem to have been 165ft x 41-3/4ft x 15-1/4ft. Her crew was intended to be 400 sailors and 50 soldiers. She was armed as follows:

• Lower tier: 10-brass 24pdr, 18-iron 18pdr
• Middle tier: 28-brass 12pdr
• Upper tier: 20-brass 6pdr (under the quarterdeck and forecastle)
• Quarterdeck: 4-brass 6pdr