Snow Crash by Neal Stephenson

Vanessa Kirby (seasons 1–2), Helena Bonham Carter (seasons 3–4), and Lesley Manville (seasons 5-6) - Princess Margaret, Countess of Snowdon

Though the snow-drifts of Yoshino were heaped across his path, doubt not that whither his heart is set, his footsteps shall tread out their way.

Does it not move you strangely, the love-bird's cry, tonight when, like the drifting snow, memory piles up on memory?