1085

1085 may refer to the calendar year in the 11th century or to the integer itself. As a year, it sits in the middle of the High Middle Ages and saw significant events across Europe and the Mediterranean region.

In 1085, the city of Toledo in the Crown of Castile was captured by Alfonso VI, a major milestone in the Christian Reconquista of the Iberian Peninsula. The same year Pope Gregory VII died in exile, marking a turning point in the Investiture Controversy between the papacy and the Holy Roman Emperor.

As a number, 1085 is an odd composite. Its prime factorization is 5 × 7 × 31, the product of three distinct primes. In Roman numerals, 1085 is written as MLXXXV. The number has no widely noted special properties beyond its factorization and standard numerical representations.

In summary, 1085 is notable for both historical events tied to a specific year, notably the fall of Toledo and the death of a pope, and for its mathematical characteristics as a composite integer.