Nothing, because it doesn't mean anything in English either.
Dries van Agt's birth name is Andreas Antonius Maria van Agt.
Dries van Agt was born on February 2, 1931.
Dries van Agt was born on February 2, 1931.
Agent
Agt
Dries van Agt is 80 years old (birthdate: February 2, 1931).
fall and winter
agt
Yes,
Yes
"ag" or "agt" either is correct