The project, conceived by Mattia Liberati (keyboards) and Flavio Gonnellini (guitar), already members of the funk/jazz-rock trio "The Big Chill", began in December 2010, with Edoardo Arrigo (multi-instrumentalist) on the eletric bass; Marco Gennarini (violin) entered line-up only in June 2011, after the choice of making a concept album set in the First Crusade was made.
In November 2011, Ingranaggi Della Valle engaged in the first studio experience, recording "EP", a demo for advertising purposes with the amateur singer and friend Leonardo Pandolfo, that contains the earliest versions of the songs "Mare In Tempesta" and "Via Egnatia".
The oil painting "Il Grande Inganaggio" by Marcello Toma is used as cover artwork of the demo, and the painter will collaborate again with the band for the debut album.
The italian record label Black Widow Records, after listening to the demo, got interested in the project, and began to follow the group waiting for the completion of the compositions that form the album "In Hoc Signo".
During the finalization of the concept album, the band had a long and meticulous selection to find a front man with brilliant vocal, creative and theatrical skills. Only in February 2012 Igor Leone (singer) joined the group.
After the creative phase, the band began recording their first album, "In Hoc Signo", in September 29, 2012, at the roman recording studio Point Of View Records of Paolo Pierelli (sound engineer).
With great pleasure the band hosts in Rome the renowned Mattias Olsson (Änglagård), with whom they recorded "Jangala Mem"; the recording ended with the special participation of the singer Angelica Sauprel Scutti and the great David Jackson (Van Der Graaf Generator) on the track "Finale".
On May 10, 2013, the Black Widow Records released their debut album "In Hoc Signo" in CD format, with the painting "In Hoc Signo" by Marcello Toma as cover artwork.
In order to be faithful to the studio version of "In Hoc Signo" on stage, Edoardo Arrigo decided to play mellotron, synth and secondary guitar parts; the role of the bassist was fulfilled by Marco Bruno, a friend of the band who also collaborated with Ingranaggi Della Valle to record the bass track on "Cavalcata".
On May 16 of the same year, they won with Mauro Ciccozzi Trio and Neverflowers the "Musiche Festival" organized by the municipality of Rome, performing at Atlantico Live.
The first printing of "In Hoc Signo" was run out after 4 months from the release date. The label reprinted the album in 2014.
In March 2014, they played at FIM in Genova with Alessandro Di Sciullo, a new member replacing Edoardo Arrigo (currently bass player in Camelias Garden and Heartache).
In May 2014, they played in Rome with Wobbler and Not A Good Sign.
In January 2015, Marco Bruno left the band and he was replaced by Antonio Coronato (former member of Too Human).

"Warm Spaced Blue" is the second full-length of the band, released again by Black Widow Records.