Many of the surviving legends concerning him date back to the 14th century, and the England of Chaucer and the Canterbury Tales, when the feast day of February 14 became associated with romantic love.
There seems to be a plethora of relics of the saint, including, perhaps surprisingly, in Glasgow. Here are Rab Wilson's reflections on the matter.
Scotland's past hus mony queerlyk claims;
Aiblins 'Jacob's Pillow', the Stane o Scone,
Improbable tales o Ossian duin the rouns,
Nessie, Kelpies, Selkies, ah cuid nem.
Truth tho, as ye ken, bates ony fiction;
Valentinus, o the 'Vies des Saints',
An wha the early Christian kirk laments,
Ligs in the Gorbals, wi some ostentation!
Ensconced there in Duns Scotus Kirk he's hained.
'No Mean City' – Hou incongruous!
Tidily kisted, trig in aik an bress,
In thon braw reliquary rests yer banes.
Nou in these fourteen lines yer nem's redressed –
E'en fowk wha 'loss the heid' micht still be blessed!?