Who won the most gold medals in the 1896 Summer Olympics?

Answer 1

I assume you mean the 1896 Summer Olympics. The United States won the most gold medals (11), while host nation Greece won the most medals overall (46) as well as the most silver (17) and bronze (19) medals, finishing with one fewer gold medal than the United States. During these inaugural Olympics, winners were given a silver medal and an olive branch, while runners-up received a bronze medal and a laurel branch. The International Olympic Commission has retroactively assigned gold, silver and bronze medals to the three best placed athletes in each event.

Answer 2

That was Carl Schuhmann of Germany who won 4 gold medals in gymnastics (team horizontal bars, team parallel bars, individual horse vault) and Wrestling (Greco-Roman unlimited class).