Caladea (Google's Caladea font, google-crosextrafonts-caladea) is a modern, friendly serif font, metric-compatible with Microsoft Fonts Cambria font. Caladea comes in regular, bold, italic, and bold italic. The family covers Latin-Greek-Cyrillic (not a complete set, though) with about 2,000 glyphs.
It has the same character coverage as Microsoft Fonts Cambria.
Caladea is a default Cambria font replace in the LibreOffice Suite.