The galliasses were of such bignesse, that they contained within them chambers, chapels, turrets, pulpits, and other commodities of great houses. The galliasses were rowed with great oares, there being in eche one of them 300 slaves for the same purpose, and were able to do great service with the force of their ordinance. All these, together with the residue aforenamed, were furnished and beautified with trumphets, streamers, banners, warlike ensignes, and other such like ornaments.

ibid.
https://coldewey.cc/2009/09/the-galliasses-were-of-such-bignesse-that-they/ ยป