Frederick the Great defeats the French — Battle of Rossbach, 5 November 1755
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=29367712

Frederick's marriage to Elisabeth Christine — 12 June 1733 at Schloss Salzdahlum
Photo Credit: By J. G. SchmidtCreator:Johann Georg Schmidt (Kupferstecher) - Public Domain, https://commons.wikimedia.org/w/index.php?curid=30245110

Napoleon visits Frederick's (first) sarcophagus — His will specified he should be buried without pomp next to his greyhounds. Nephew and successor Frederick William II instead ordered the body to be entombed next to his father in the Potsdam Garrison Church
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=1539955

Baptism of Frederick, 1712 —
Photo Credit: By Unknown - Harper's New Monthly Magazine, Vol. 40 (1870), Public Domain, https://commons.wikimedia.org/w/index.php?curid=18102188

Frederick the Great —
Photo Credit: By Anton Graff - https://www.google.com/culturalinstitute/beta/asset/friedrich-der-gro%C3%9Fe/DAEsXb1rkqpq7w, Public Domain, https://commons.wikimedia.org/w/index.php?curid=63536639

Madame de Ventadour with infant Louis XV — The infant Louis with his governess, grandfather, great-grandfather and father, and the busts of Henry IV and Louis XIII in the background. Madame de Ventadour holds her charge's reins. The portrait, painted for her, commemorates her part in saving the dynasty.
Photo Credit: By Formerly attributed to Nicolas de Largillière - https://www.altesses.eu/max.php?image=51eade3cd3, Public Domain, https://commons.wikimedia.org/w/index.php?curid=153698

Marie Leszczinska —
Photo Credit: By Charles-André van Loo - Public Domain, https://commons.wikimedia.org/w/index.php?curid=13397713

Coronation of Louis XV — Reims Cathedral, 1722
Photo Credit: By Pierre Subleyras - musée des Augustins, Public Domain, https://commons.wikimedia.org/w/index.php?curid=995320

Louis XV —
Photo Credit: By Maurice Quentin de La Tour - Unknown, Public Domain, https://commons.wikimedia.org/w/index.php?curid=784295

Comte de Saint Germain —
Photo Credit: By Nicolas Thomas -Public Domain, https://commons.wikimedia.org/w/index.php?curid=677215

Bertrada of Laon — Statue by Eugène Oudiné, one of the twenty Reines de France et Femmes illustres in the Jardin du Luxembourg, Paris.
Photo Credit: By User:Jastrow - Own work, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=3612026