[1][2] In 1600 he was documented as being in Rome, where he was a good friend of Joseph van Arpino and witnessed him being cured of an ailment with Olio del gran Duco, an oil given to him by the Pope's personal physician, with which he smeared himself all over his body.
[3] In 1606 he returned to the Netherlands, where he settled in Haarlem and became one of Karel van Mander's sources on modern Italian painters for his Schilder-boeck.
[2] Like the young Frans Hals and other assistants to Karel van Mander, Floris is not listed with his own entry in that book, though he was already an established painter on his return from Italy.
[4] He was influenced by Osias Beert and Clara Peeters and is considered the inventor of the banketje (banquet still life genre similar to breakfasts, or ontbijtjes), together with Nicolaes Gillis.
[1] Besides Nicolaes Gilles, he influenced the painters Floris van Schooten, Pieter Claesz, and Roelof Koets.