"May", "May Month" or "The Month of May", known in Welsh as "Mis Mai", is a 14th-century Welsh poem in the form of a cywydd[1] by Dafydd ap Gwilym, widely seen as the greatest of the Welsh poets.[2] The poem celebrates May, and specifically May Day, as the beginning of summer, the season in which the poet can make assignations to woo young ladies in the woods,[3][4] though since the woods of May are only one part of Creation his praise of them also involves praise of God.[5] It was included by Thomas Parry in his Oxford Book of Welsh Verse.[6]