Marinus of Tyre
Marinus of Tyre ( , "Marînos ho Týrios"; 70–130 ) was a Greek or Hellenized Phoenician geographer , cartographer and mathematician , who founded mathematical geography and provided the underpinnings of Claudius Ptolemy's influential "Geography" . 
<triplet> Marinus of Tyre <subj> cartographer <obj> field of work <triplet> Claudius Ptolemy <subj> mathematician <obj> field of work <subj> Geography <obj> notable work