South-Western Iberian Bronze

[1] Much more rare but also more impressive are the 'grabsystem' tombs, made up of three adjacent stone enclosures, of quasi-circular form, each one with an opening.

[citation needed] The use of collective burial megaliths and artificial caves fade in the region around the last quarter of the III millennium, then two new burial types appear: the tholoi and the cists (buried rocky boxes), usually placed inside a stone circle.

All these funerary customs end in the Final Bronze Age (with few possible exceptions like Nora Velha and Roça do Casal do Meio): the new incineration rite prevails over inhumation, and the new necropolises are formed with rectangular or squared plain tumulus made of stones.

[5] Three buried males were tested from the archaeological sites Monte do Gato de Cima 3 and Torre Velha 3 (being dated to the second quarter of the second millennium BC); one had Y-chromosome haplogroup R1b1a2, and the other two the derived subclade R1b1a2a1a2 (R-P312).

[6] In another genetic article, it was determined that an individual from Monte da Cabida 3 site (São Manços, Évora), dated to the period 2200-1700 BC, had Y-DNA R1b-L51.