St. Peter's turned Michelangelo's handwriting into a font that ships in Microsoft 365

How do you create a digital identity for something as storied as St. Peter's Basilica? The Fabbrica di San Pietro, the institution that maintains it, wanted its heritage to be part of how it communicates today, not just a display piece.

A digital typeface, Michelangelus, built from Michelangelo's manuscripts and the Pietà inscription — then given away inside the Microsoft 365 font library.

studiogusto's Mimmo Berterame and Stefano Caliandro studied Michelangelo's original manuscripts in the Vatican archives, extracted the 'invisible architectural grid' of his lowercase italic, derived the regular and uppercase letters largely from the Pietà inscription (starting with M), based numbers on letters (one = I) and drew more than 500 characters per style across regular, italic, bold and bold italic.

Michelangelus is used across the Fabbrica's digital and printed materials and the basilica's signage, and was contributed to the Microsoft 365 font library — also free to download for use outside M365.

The Fabbrica di San Pietro, the institution in charge of maintaining St. Peter's Basilica, asked itself how to preserve a heritage while making it part of daily communication. Its answer, for the 400th anniversary of the basilica's consecration (marked by a ceremony on November 18), was Michelangelus: a digital typeface inspired by Michelangelo's own handwriting, used for the institution's digital and printed materials and the basilica's signage — and contributed to the Microsoft 365 font library, free to download.

The Italian design agency studiogusto did the research and the artistic and technical work. Berterame and creative director Stefano Caliandro went into the Vatican archives to read the original manuscripts. 'There's kind of a geometry, there's kind of use of empty and filled spaces,' Caliandro said — 'his impatience, his precision, his energy are in his calligraphy.' The goal was not to imitate the hand but to adapt it: the designers identified rules inside the calligraphy and replied to its invisible architectural grid, keeping flourishes like the small dot atop the 'h' or under the 'y'.

The lowercase italics stay closest to Michelangelo's hand; the regular and uppercase letters derive largely from his inscription on the Pietà and inscriptions inside the basilica — a carved lettering that already resembled a condensed typeface. They started with M, the largest letter and the first of his name, and since no examples of his numerals exist, numbers were based on letters. In all, more than 500 characters per style across regular, italic, bold and bold italic.

Sharing the typeface through Microsoft 365 extends an existing collaboration between Microsoft and the Fabbrica on using technology to preserve and share the basilica's heritage. 'Sharing it with everyone gives them a chance to form a personal connection with the history of the Basilica and of Michelangelo,' the Fabbrica's communications office said.

The identity was not invented: it was excavated from the subject's own manuscripts and carvings, so the brand literally writes in its architect's hand.

The team adapted rather than imitated — finding the grid inside the calligraphy is what made a Renaissance hand usable as a modern UI-capable font.

Giving the font away inside Microsoft 365 turned an internal signage project into global distribution no heritage campaign could buy.

The Pietà inscription already resembled a condensed typeface, giving the uppercase a carved, physical source instead of guesswork.

A heritage identity works hardest when it is excavated rather than invented — and when it ships as a working tool instead of sitting in a style guide.

The typeface enters the Microsoft 365 font library ahead of the November 18, 2026 anniversary ceremony and is free to download for anyone outside M365. The Fabbrica says it hopes the font makes people want to know more about the basilica's history.