courtly love
Noun
Meaning
(Middle Ages) a highly conventionalized code of conduct for lovers
Source: WordNetHypernyms
Examples
Nevertheless, the themes of courtly love often found in the medieval secular motet were banished from the Renaissance motet.
The medieval phenomenon of courtly love in all of its slavish devotion and ambivalence has been suggested by some writers to be a precursor of BDSM.
This would contain what is often called courtly love, the idea that the knight is to serve a lady, and after her all other ladies.