Jason actually had a number of notable martial encounters on his journeys.
First he helped fight off the Gegeines, a tribe of six-armed giants. Later, he and his crew chased away the Harpies, which had been sent by Zeus to torment Phineus. Once in Colchis, one of his tasks was to defeat the sleepless dragon which guarded the Golden Fleece, which he did without killing it. With the help of Medea, Jason defeated the mighty Talos, a giant made of bronze.
Was one of these what you were looking for?
Medea
you can probably just Google Image 'greek mythology jason'.
"Jason and the Argonauts" .
Yes. From Greek mythology.
Ulysees
Mount Peliam
The characters of the Greek mythology have not lived in our chronology.
sword.
Jason and the argonauts
His sandals
Jason
Possibly you are asking about Jason and Medea.