 In modern times , the Welsh roots of the college come to the fore most prominently on Saint David 's Day . The feast is marked by a choral Evensong in the chapel , decorated for the occasion with daffodils . The service , including music , is conducted entirely in Welsh ( despite only a small minority of the choir usually being native speakers of the language ) . It is generally well attended by members of the Welsh community in Oxford . The college 's annual St. David 's Day Dinner traditionally culminates with the serving of Sir Watkin Williams @-@ Wynn 's Pudding . The name recalls the Welsh politician and prominent Jacobite who attended the college early in the 18th century . 
