University of Helsinki logo —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=32763590

Linus Torvalds — cropped speaking at the LinuxCon Europe 2014 in Düsseldorf
Photo Credit: By Krd (photo)Von Sprat (crop/extraction) - File:LinuxCon Europe Linus Torvalds 03.jpg, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=54706023

The "Tyburn Tree" —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=5506695

Edmund of Woodstock, 1st Earl of Kent —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=65390520

Matilda of Scotland — By engraved by W. H. Mote (1803-1871) after an illustration by J.W. Wright - engraving published in 1875 book "The Queens of England or Royal Book of Beauty" (or 1851 book "Biographical Sketches of the Queens of England"), edited by Mary Howitt
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=3903114

Matilda of Scotland — cropped
Photo Credit: By engraved by W. H. Mote (1803-1871) Public Domain, https://commons.wikimedia.org/w/index.php?curid=3903114

Empress Matilda —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=578310

Henry I Crowned — A 17th-century manuscript drawing of Henry's coronation
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=16586491

Henry I of England —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=577443

Old print of the Palace of Woodstock —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=3665844

Joan of Kent —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=7634826