This 17 June 2020 video says about itself:
Snake male combat – males of some snake species fight for dominance during mating season. Non-venomous Aesculapian snakes (Zamenis longissimus) are big long snakes, which are critically endangered in the Czech Republic. This video shows 2 males fighting for the right to mate with a female for over one hour. Both snakes try to push the body of the rival down to the ground. This footage was filmed in the wild nature in the Dyje river valley.