The archive of the province of Zeeland in the south of the Netherlands owns a diary of Steven Racket who worked for his uncle Gillis Hooftman in London (England), Antwerp (nowadays Belgium) and Middelburg (The Netherlands). He calls his uncle Gillis Ho(o)ftman. Scans of Steven's diary/bookkeeping are on the website zeeuwsarchief.nl (5624 Ambachtsheerlijkheden Oosterland, Sirjansland en Oosterstein 1559-2003, inventarisnummer 1741 Aantekenboekje (dagboekje) afkomstig van Steven Racket (1549-1591).
In the diary he writes about family and friends. In 1568 he probably mentions the birth of Anna Hooftman (Anneken) who was born 29 December 1568, eight o'clock in the morning, daughter of his aunt Margarite.
Diary Steven Racket
A Dutch Wikipedia page about Gillis Hooftman mentions that his ancestors came from Eichelberg in the German Rheinland. That explains the surname Van (from) Eyckelberg. There's a lot of interesting information on the Wikipedia page: Wikipedia about Gillis Hooftman