Friar Tuck was a skilled swordsman
William the Bastard's brother, who's name escapes me, was the prototype for the cleric who fought with a mace so that he wouldn't 'spill blood'. But there were others who did the same during the crusades.Moses was a warrior. And Muhammad. Religious folk have been making war throughout history.
The only pre-D&D, swords & sorcery kinda fighting priest that I can think of, is Rakhir the Red Archer, warrior-priest of Phum from M.M.'s Elric stories.
William the Bastard's brother, who's name escapes me, was the prototype for the cleric who fought with a mace so that he wouldn't 'spill blood'. But there were others who did the same during the crusades.
Double-wielding swords or even worse, double-wielding giant hammers.
Clerics since OD&D right on through Fourth: a cleric should not be a combatant. The examples people always use are either religious knights (id est, paladins) or else examples from fantasy written after the baleful effects of OD&D. But I just refluff clerics as knights templar/jihadists/paladins and carry one with it.
Huge, famous dungeons are an old school trope. They're huge. They repopulate easily, can never be cleared out and most importantly, most of those adventurers are dead, dead, dead.![]()

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.