How the chronicles of past time speak about the beauty in sonnet 106

Sonnet 106 looks back in time, to a time recorded in the "chronicles" which the speaker reads. In contrast, many of Shakespeare's other sonnets to the fair lord have looked forward in time, to a point when the fair lord will either be dead or will have lost his youthful beauty, but will live on through the poet's work. Sonnet 17 is, in a way, a foil to Sonnet 106 by looking forward to a time when the poet's own work will be a "chronicle of wasted time," asking, "Who will believe my verse in time to come, / If it were fill'd with your most high deserts?"