Mikeland's link gives the only possible answer, no soldier, just a servant.
Like the ones of the 4 musketeers. But no hero should do without.
Rumours that Rupert's cavalry at Naseby was trying to engage some more servants of Baldrick quality in the Parliament camp seem to be unfounded. Instead a certain Captain B. led the attack , misled by the typical Baldrick description of the countryside where his pig farming father lived.