Dutch ship armaments in 1665

By the Battle of Lowestoft, Dutch ships seemed to have carried a large number of guns for their size. The little Rotterdam ship Vrede carried 40 guns. In the case of the Vrede, the ship carried many 12pdr and 6pdr guns. My opinion was that the ship was greatly over-armed for a small frigate. This was the ship that Jan van Brakel commanded at the raid on the Medway when he is often said to have broken the chain on the Medway. The truth seems to be that the fireship Pro Patria, commanded by Jan Daniëlsz van Rijn, was the ship that broke the chain.