This is a excerpt of a lament poem from a 17th c. compilation ('sbornik' - a book, which gathers individual articles, works and liturgical services, hymns, etc.) dedicated to Alexis of Russia. You can see a crying eagle (evidently mourning Alexis' death) and two suns: one that is setting and one that is rising, which symbolises the new ruler - Feodor III.
Lord Heavenly King loves the Trinity (it's a Russian saying: 'Bog ljubit Troicu', which people use before doing something in threes) and though this royal Trinity loves all. Two crowns sit on the two heads of the royal eagles. Who is crowened by the third one? Of course, the King of glory! The King of Heavens in the third crown seeks good {not present in this image} and helps His annointed one in all things.
