The vihuela (Spanish pronunciation: [biˈwela]) is a guitar-shaped string instrument from 15th and 16th century Spain, Portugal and Italy, usually with six doubled strings.
The vihuela, as it was known in Spain, was called the viola da mano in Italy and Portugal. The two names are functionally synonymous and interchangeable. In its most developed form, the vihuela was a guitar-shaped instrument with six double-strings (paired courses) made of gut. Vihuelas were tuned identically to their contemporary Renaissance lute; 4ths and mid-3rd (44344, almost like a modern guitar tuning, with the exception of the third string, which was tuned a semitone lower).
Plucked vihuelas, being essentially flat-backed lutes, evolved in the mid-15th century, in the Kingdom of Aragón, located in north-eastern Iberia (Spain). In Spain, Portugal, and Italy the vihuela was in common use by the late 15th through to the late 16th centuries. In the second half of the 15th century some vihuela players began using a bow, leading to the development of the viol.