The palliolum was a kind of mantilla.
mc4nte), must, as the New English Dictionary points out, be a "back-formation," and this will explain the diminutive form of the Spanish mantilla.
The Spanish mantilla is a covering for the head and shoulders of white or black lace or other material, the characteristic head-dress of women in southern and central Spain.
Leaning on her arm was a slightly-built old lady with white ringlets, dressed all in black and wearing a lace mantilla.
Escaping from her father she ran to hide her flushed face in the lace of her mother's mantilla--not paying the least attention to her severe remark--and began to laugh.