Petruccio Ubaldini (c.1524 – c.1600) was an Italian (Tuscan) mercenary soldier for Henry VIII (1545–47) and in Edward VI's Scottish war (1549)[1] a calligraphist and illuminator on vellum, who was working in England in the reign of Queen Elizabeth, and seems to have enjoyed the favor of the Court.
He returned to England in the reign of Edward VI, and saw service in the Scottish war under James Croft, governor of Haddington.
[3] Ubaldini then spent time in Venice, and it was not until ten years later that he settled in England, where he found a patron in Henry Fitzalan, 12th Earl of Arundel, who presented him at court.
[2] Ubaldini compiled an account (now lost) of the repulse of the Spanish-Italian invasion of County Kerry in 1580 (see Siege of Smerwick).
He rendered into Italian in 1588 the narrative of the defeat of the Spanish Armada compiled for Lord Howard of Effingham, Commentario del successo dell' Armata Spagnola nell' assalir l'Inghilterra l'anno 1588.