Swedish queen Drottning Kristina (Christina) — by Sébastien Bourdon
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=91025

Death of Gustav II Adolf in the Battle of Lützen — By Carl Wahlbom, 1855
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=52125011

Gustavus Adolphus in the battle of Lützen —
Photo Credit: By Jan Asselijn - Public Domain, https://commons.wikimedia.org/w/index.php?curid=8029585

Flag of the Catholic League — Virgin Mary, praying on a cloud, crowned with a glory; on a white oval; surrounded by a glory of yellow rays; on a field of white and blue lozenges, Bavarian style
Photo Credit: By Oren neu dag (talk) - Own work, with elements from Flag of Bavaria (lozengy).svg: , Héraldique meuble Soleil 2.svg: , and Escudo de Ajalvir.svg:, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=6753282

Gustave Adolphe at Breitenfeld — by Johann Walter, 1632
painting in the Musée historique de Strasbourg.
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=11093334

Gustavus Adolphus, King of Sweden 1611-1632 —
Photo Credit: Attributed to Jacob Hoefnagel (1575 - 1630) – Public Domain, https://commons.wikimedia.org/w/index.php?curid=21785153

Charles IX of Sweden —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=52120276

The Assault on Copenhagen in 1659 — by Frederik Christian Lund, 1887, Det Nationalhistorike Museum, Frederiksborg
Photo Credit: By Frederik Christian Lund - https://popularhistoria.se/krig/svenska-krig/hur-manga-krig-har-sverige-och-danmark-utkampat, CC0, https://commons.wikimedia.org/w/index.php?curid=83659941

Herzberg Castle — The castle seen from Herzberg
Photo Credit: By Elke Wetzig (Elya) - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=8013399

Anna Eleonore of Hesse-Darmstadt —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=15965555

Leineschloss - Leine river frontage —
Photo Credit: By Axel Hindemith - Public Domain, https://commons.wikimedia.org/w/index.php?curid=3635214