Praseodymium and vanadium cosubstituted Bi₄Ti₃O ₁₂ was synthesized using a modified citrate-gel method. The crystallization was promoted by the oxidation of residual carbon produced by decomposition of -CH_x groups resulting in a crystallization temperature as low as 450 °C. The as-synthesized powder consisted of uniform spherical particles with a mean size of 57 nm and a standard deviation of 14 nm. The ceramic prepared from the as-synthesized powder at 900 °C consisted mainly of randomly arranged platelets with a thickness of 200 nm. The Rietveld refinement in the orthorhombic space group Abal for the as-prepared Pr ³⁺ and V⁵⁺ cosubstituted Bi₄Ti ₃O₁₂ resulted in a convergent refinement (R_wp = 5.01%). The remanent polarization (2P_r) and coercive field (2E _c) values measured at room temperature with a maximum electric field of ±300 kV/cm were 35 μC/cm² and 148 kV/cm, respectively. The ceramic has a very low ohmic conductivity, and the leakage current density is below 1 μA/cm² up to 200 kV/cm. No profound fatigue was observed after switching over 10⁸ cycles. The evolution of 2E _c, 2P_r, P_max (maximum polarization), and P _max/P_r with E_max (maximum electric field) is discussed using an ideal and a four components ferroelectric capacitor model. The observed linear relationship between P_maxP_r and E _max provides the possibility to calculate the field independent dielectric constant (282) and nonremanent polarization (2.7 μC/cm² at E_max = 300 kV/cm) for the ceramic studied.