In fact, late in the series, it was revealed (through the actions of Thoth, son of Nemesis the Warlock) that his previous incarnations have included Colonel John M. Chivington, Witchfinder General Matthew Hopkins, Adolf Hitler and his namesake, the original Torquemada.
(He is, however, also a dedicated family man – he is distressed when Nemesis kills his children while escaping the Terminators and loves his wife Candida to such an extent he consorts with aliens in an effort to prevent her from divorcing him.)
Torquemada is served by a fanatical army of soldiers called Terminators, who are constantly at war with all alien races in the galaxy.
The wedding ceremony ended disastrously when his foe Nemesis appeared with Candida willingly fleeing from the temple with him.
Stealing Nemesis' Blitzspear, he fled to the Hypogeum to activate a "Generation Bomb" (which would destroy all alien DNA on Earth).
Before he could even activate it, Nemesis managed to contaminate him with alien DNA with his claws before using his remaining powers to make sure Torquemada would perish with him.