Rocky, Ruggiero (6 October 2021). "Episode 142 – Leonardo da Vinci's Sala delle Asse". rockyruggiero.com. Making Art and History Come to Life, Rebuilding the Renaissance. Archived from the original on 3 June 2023. Retrieved 11 October 2021.
saladelleassecastello.it
"Segui il restauro" [Follow the restoration]. Castello Sforzesco – Sala delle Asse (in Italian). Archived from the original on 16 October 2018. Retrieved 19 October 2018.
Baucon, A. 2010. Da Vinci's Paleodictyon: the fractal beauty of traces. Acta Geologica Polonica, 60(1). Accessible from the author's homepageArchived 11 May 2019 at the Wayback Machine
Rocky, Ruggiero (6 October 2021). "Episode 142 – Leonardo da Vinci's Sala delle Asse". rockyruggiero.com. Making Art and History Come to Life, Rebuilding the Renaissance. Archived from the original on 3 June 2023. Retrieved 11 October 2021.
"Segui il restauro" [Follow the restoration]. Castello Sforzesco – Sala delle Asse (in Italian). Archived from the original on 16 October 2018. Retrieved 19 October 2018.
Baucon, A. 2010. Da Vinci's Paleodictyon: the fractal beauty of traces. Acta Geologica Polonica, 60(1). Accessible from the author's homepageArchived 11 May 2019 at the Wayback Machine
The diary of his paternal grandfather Ser Antonio relays a precise account: "There was born to me a grandson, son of Ser Piero [fr], on 15 April, a Saturday, at the third hour of the night."[13][14] Ser Antonio records Leonardo being baptised the following day by Piero di Bartolomeo at the parish of Santa Croce [it].[15]
The diary of his paternal grandfather Ser Antonio relays a precise account: "There was born to me a grandson, son of Ser Piero [fr], on 15 April, a Saturday, at the third hour of the night."[13][14] Ser Antonio records Leonardo being baptised the following day by Piero di Bartolomeo at the parish of Santa Croce [it].[15]
de.wikipedia.org
Franz-Joachim Verspohl [de], Michelangelo Buonarroti und Leonardo Da Vinci: Republikanischer Alltag und Künstlerkonkurrenz in Florenz zwischen 1501 und 1505 (Wallstein Verlag, 2007), p. 151.