Il numero romano MCDXXVI nel sistema decimale vale: 1426.
MCDXXVI in latino si scrive mille quadringenti viginti sex,
mentre in italiano millequattrocentoventisei.
MCDVII, MCDVIII, MCDIX, MCDX, MCDXI, MCDXII, MCDXIII, MCDXIV, MCDXV, MCDXVI, MCDXVII, MCDXVIII, MCDXIX, MCDXX, MCDXXI, MCDXXII, MCDXXIII, MCDXXIV, MCDXXV, MCDXXVII, MCDXXVIII, MCDXXIX, MCDXXX, MCDXXXI, MCDXXXII, MCDXXXIII, MCDXXXIV, MCDXXXV, MCDXXXVI, MCDXXXVII, MCDXXXVIII, MCDXXXIX, MCDXL, MCDXLI, MCDXLII, MCDXLIII, MCDXLIV, MCDXLV