We do not know the name that once has been given to the village of Manteigas, and by who have it been founded once that there is no monument that we can take into account in that way. Tradition says that Julio Cesar passed by this territory, fifty years a.C., leading his soldiers.
The origin of the forums and privileges, customs and traditions of Manteigas village, which village denomination is found in many documents from de XII century and following, are identical to those of many other surrounding lands that sat roots around the slopes of the mountain known by those indented times as Monte Hermeni, now called Serra da Estrela.
In the year of 1188, D. Sancho I gave the first charter to the village of Manteigas and D. Manuel I granted a new charter in the 4th of March of 1514 in Lisbon, this besides the interest that has as the proof document of the autonomy of the village at the time, assumes great significance once there is the oldest and more reliable reference of the charter that D. Sancho I gave to Manteigas.
Of the four parishes that make up the Municipality, it is known that the parishes of Saint Mary and Saint Peter have been formed between 1336 and 1338.
The parish of Sameiro that belonged to the Municipality of Covilhã and to the extinct Municipality of Valhelhas, only in 1835 was attached to the Municipality of Manteigas.
The Municipality of Manteigas, extinct in the 26th of June of 1896 and attached to the one of Guarda, came to be restored in the 13th of January of 1898.
The parish of Vale de Amoreira joined the Municipality after the 1st of January of 2002, under the Law N.º 29/2001 of the 12th of July.