Analysis of information sources in references of the Wikipedia article "Miniature Schnauzer" in English language version.
He was never a Terrier in the English sense of a small breed used to bolt vermin from the earth, and has little or no true Terrier blood... During the years, other crosses were invariably made, but there are no definite records as to the outcrosses. Affenpinschers, Miniature Pinschers, and Toy Spitz (Pomeranians) are mentioned.
...the Miniature Schnauzer resides in the AKC Terrier Group with other diminutive rat-catcher breeds. But the Mini is unique among AKC terriers in that he has no British blood in his veins... Alone among terriers, the Miniature Schnauzer is wholly a product of Continental stock: Standard Schnauzer, Affenpinscher, and Poodle. This explains that though the Mini was born to the traditional work of small terriers, his personality is quite different. Not for him is the dour independence of the Scottish Terrier or the fiery temperament of the Irish Terrier. Rather, he is an overtly friendly dog, spirited but obedient and willing to please.
The Miniature Schnauzer is derived from the Standard Schnauzer and is said to have come from mixing of Affenpinschers and Poodles with small Standards
The Miniature is said to have come from mating with the Affenpinscher. They may have been developed entirely by chance, often the main reason for a new breed...
This miniature relation of the Standard Schnauzer first appeared around the beginning of the nineteenth century and is thought to be the product of crosses between small Standard Schnauzer and/or Miniature Pinschers with Affenpinschers and Poodles.
Most experts believe that the Miniature Schnauzer is the result of crossbreeding Poodles and Affenpinchers with smaller Standard Schnauzers. If this is correct, the addition of these other two breeds with their positive traits of vigor and intelligence certainly improved the result.
Size reduction, in the Miniature's case, may have been achieved by introducing Affenpinscher and poodle blood... To create the Miniature Schnauzer, it is theorized the Standard Schnauzer may have been crossed with the Affenpinscher or Miniature Pinscher.
Miniature Schnauzers are hardy, merry little dogs that were first bred in Germany in the late 19th century. They are descendants of Affenpinschers and Standard Schnauzers.
It is thought that the miniaturisation was brought about by the infusion of Affenpinscher blood.
Questions as to the roots and origins of the Miniature Schnauzer produce varied responses. Some breed authorities have maintained that the breed is a result of using only the smallest specimens of the Standard Schnauzer. Others have felt Miniatures to be the result of crossing the Standard Schnauzer with the Affenpinscher and other small breeds. This latter is considered to be the more probable origin...
...the Miniature Schnauzer resides in the AKC Terrier Group with other diminutive rat-catcher breeds. But the Mini is unique among AKC terriers in that he has no British blood in his veins... Alone among terriers, the Miniature Schnauzer is wholly a product of Continental stock: Standard Schnauzer, Affenpinscher, and Poodle. This explains that though the Mini was born to the traditional work of small terriers, his personality is quite different. Not for him is the dour independence of the Scottish Terrier or the fiery temperament of the Irish Terrier. Rather, he is an overtly friendly dog, spirited but obedient and willing to please.
The Miniature Schnauzer is derived from the Standard Schnauzer and is said to have come from mixing of Affenpinschers and Poodles with small Standards
