Sunan mahaifi Santes Dwynwen, a zahiri "Ranar St. Dwynwen » ana ɗaukarsa daidai a cikin Galesu don ranar soyayya kuma ana yin bikin a ranar 25 ga Janairu na kowace shekara. Ana yin bikin ne don girmama Dwynwen, Welsh Saint na soyayya don haka kwanan wata shine ranar idin Saint Dwynwen.
A duk fadin Wales, yara da manya suna rubuta wasiƙun su don baiwa juna don bikin soyayyarsu, ko kuma wani lokacin ba tare da suna ba don jawo hankalin ɗayan cikin soyayya.
Mafi yawan tarihin Wales ya dogara ne da labarai da waƙoƙi, tun da an ɗauka alheri ne ba rubuta waɗannan labaran da baitocin ba, amma komai na baka ne. Kamar wannan, asalin labarin an gauraya shi da abubuwa daga tatsuniyoyin Celtic da labarai.
Dwynwen ya rayu a cikin ƙarni na 5 AD kuma yana ɗaya daga cikin 'ya'ya mata 24 na Saint Brychan, basarake ɗan Welsh na Brycheiniog. Ta kamu da son wani saurayi mai suna Maelon, amma ta ki amincewa da kaunarsa. Wannan, ya danganta da labarin ne saboda tana son ta kasance mai tsabta kuma ta zama zinare ko kuma saboda mahaifinta yana son ta auri wani.
Dwynwen ya zama sanannu a matsayin Waliyin Masoya kuma an yi hajji a tsibirin Dwynwen inda take da coci don aikin hajji.