Author’s abstract: “It is shown that the Bernoulli polynomials

${B}_{n}\left(z\right)$, the Euler polynomials

${E}_{n}\left(z\right)$ and the generalized Bernoulli polynomials

${B}_{\chi}^{n}\left(z\right)$ associated with certain quadratic characters have no zero inside a parabolic region if n is sufficiently large. Zero-free regions are also found for individual polynomials, and for the partial sums of sine and cosine. The proofs are based on a result on the maximum modulus of the zeros of polynomials related to the

${B}_{n}\left(z\right)$,

${E}_{n}\left(z\right)$ and

${B}_{\chi}^{n}\left(z\right)$. Finally, the distribution of the real zeros of

${B}_{\ell}^{n}\left(z\right)$ and

${E}_{n}\left(z\right)$ is studied. The results are similar to the known results on the real zeros of

${B}_{n}\left(z\right)$.”