Portrait miniature of Thomas Seymour, 1st Baron Seymour of Sudeley (c. 1508 – 1549)
<bdi>Attributed to <a href="https://en.wikipedia.org/wiki/en:Lucas_Horenbout" class="extiw" title="w:en:Lucas Horenbout"><span title="Flemish artist and court miniaturist to King Henry VIII (1490-1544)">Lucas Horenbout</span></a>
</bdi>
1540
Schaffers-Bodenhausen, Karen; Tiethoff-Spliethoff, Marieke (1993). <i>The Portrait Miniatures in the Collections of the House of Orange-Nassau</i>. Zwolle: Wanders. <a href="//commons.wikimedia.org/wiki/Special:BookSources/9789066302624" title="Special:BookSources/9789066302624">ISBN 9789066302624</a>, p. 373.