Battle of Grunwald — Bitwa pod Grunwaldem
Photo Credit: By Jan Matejko - Public Domain, https://commons.wikimedia.org/w/index.php?curid=49004656

King Władysław II Jagiełło, detail of the Triptych of Our Lady of Sorrows in the Wawel Cathedral —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=3287972

Union of Krewo — signed in Kreva on 14 August 1385
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=18338485

Wawel Cathedral — Roman Catholic cathedral situated on Wawel Hill in Kraków, Poland. Nearly 1000 years old, it is part of the Wawel Castle Complex and is a national sanctuary which served as the coronation site of Polish monarchs.
Photo Credit: By Jar.ciurus - Own work, CC BY-SA 3.0 pl, https://commons.wikimedia.org/w/index.php?curid=28124451

Vytautas and Kęstutis imprisoned by Jogaila —
Photo Credit: By Wojciech Gerson - Public Domain, https://commons.wikimedia.org/w/index.php?curid=1196038

Kęstutis —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=611501

Jogaila (Władysław II Jagiełło) — Партрэт вялікага князя Жыгімонта Аўгуста (Žygimont Aŭgust), памылкова падпісаны як Ягайла (Jagajła)
Photo Credit: By Kanstantyn Aleksandrovič - Public Domain, https://commons.wikimedia.org/w/index.php?curid=12846556

Algirdas, Grand Duke of Lithuania —
Photo Credit: By en:Alexander Guagnini (1538-1614) - Public Domain, https://commons.wikimedia.org/w/index.php?curid=703430

Prince Eunutius (Jaunutis) —
Photo Credit: By Йонас Мацкявичус - https://vdkm.limis.lt/detali-paieska/perziura/-/exhibit/preview/190000003394588?s_id=hNCRWzJmlZ24n69y&s_ind=7&valuable_type=EKSPONATAS, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=110278576

Grand Duke of Lithuania Gediminas —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=12216080

Grand Duke of Lithuania Butigeidis —
Photo Credit: By Мечыслаў Барвіцкі - Public Domain, https://commons.wikimedia.org/w/index.php?curid=1064