I think a lot of confusion has been created by the designations given by the MyTrueAncestry calculator. Below are the descriptions for each of the Iron Age samples. I have reviewed them, and given them the appropiate cultural designations. We can see that only four of them can be considered close to "Latin", two of them are within the range that is between North Italy and Iberia (435, 851), and the other two are in the Southern Italy range (437,850). However, it is clear that Etruscans fall into the range between North Italy, and Iberia:
Martinsicuro Date range: 930 cal BCE - 839 calBCE Individuals: R1
Martinsicuro is a coastal site located on the border of Le Marche and Abruzzo on central Italy’s Adriatic coast. It is a proto-Villanovan village, situated on a hill above the Tronto river, dating to the late Bronze Age and Early Iron Age(154). Excavations at the site have been limited, but during an excavation in preparation for road construction, a single post-built structure was excavated which contained a rich archaeological deposit of ceramics (155). These finds from the site indicate an affinity with contemporaries in the Balkans, suggesting direct trade contacts and interaction across the Adriatic. In particular, the practice of decorating ceramics with bronze elements was shared between the Nin region in Croatia and Picene region of Italy, including Martinsicuro (156). These finds also show the conservation and preservation (e.g. as artifacts) of ceramics from the earlier Middle Bronze Age into the Late Bronze Age and Early Iron Age.
Culture: Proto-Villanovan
Palestrina (Antina, Colombella, Selciata) Date range: 600 BCE - 200 CE Individuals: R435, R436, R437
Praeneste, modern-day Palestrina, located south of Rome, was one of the largest ancient cities in Iron Age Latium and home to the Praenesti tribe. Praeneste was originally part of the Latin League, a consortium of cities allied for mutual protection, but left to form an alliance with Rome. After Rome was sacked by the Gauls in the 4th cen BCE, Praeneste switched sides again and fought against Rome in the Latin Wars. After defeat by the Roman, Praeneste was incorporated into the growing Roman territory (170).
Archaeological evidence attests to the strong trade links Praeneste had across the Mediterranean. One striking example is the silver bowl (Fig. S30) from an Iron Age tomb at Praeneste dating to the 8th/7th century BCE (3). Based on stylistic elements, art historians have attributed the bowl to a Carthaginian or Phoenician origin. Interestingly, the hieroglyphic characters serve as a design motif rather than as textual characters. They do not spell anything, perhaps suggesting that the bowl was created for a market that valued their aesthetic, rather than inscriptive, value.
Culture: Praenesti tribe – Latin League
Castel di Decima Date range: 900 BCE - 700 BCE Individuals: R1016
The necropolis of Castel di Decima is located along the Via Pontina (SS48) between approximately 18 and 20 km, on the southern outskirts of Rome, after Tor dei Cenci, along the route of the ancient Via Laurentina which connected Rome to Lavinio (119, 120). It was identified in 1953, with the recovery of partially damaged funerary objects, then a rectification of the path of the road and partially explored in a systematic way from 1971 to the end of the 1990s. On the occasion of the doubling of the road and the construction of houses the site was subject to archaeological protection. The excavations in the necropolis were directed by the two archaeological Superintendencies of Ostia Antica and Rome, competent for the territory, respectively to the west and east of the Via Pontina.
The excavations at Castel di Decima returned about 400 pit inhumations, dating back to a period of time between the beginning of the eighth century BCE and the end of the seventh century BCE. Apart from some tombs found devoid of objects or previously disturbed, they have all provided funerary objects of particular interest, among which some of considerable wealth emerge, attributable to figures of aristocratic rank and their family groups which characterize the Lazio and Tyrrhenian societies in general from the Orientalizing period (121).
The type of argillaceous-ferrous soil has not generally allowed the preservation of the skeletal remains of which only the teeth are preserved and traces of the long bones and skull, except for rare cases in which the outline of almost the entire skeleton is preserved, but with the bones which, while retaining their shape, are completely decalcified and very crumbly, especially in the distal parts. In these cases, the skeleton was recovered inside the blocks of earth that contained them. The gender of individuals is therefore almost always has been determined by the composition of funerary objects. The materials recovered by the Superintendency of Ostia Antica are kept at the EUR Civilization Museum, those recovered by the Superintendency of Rome at the National Museum of Terms in Rome.
Culture: Lazio and Tyrrhenian societies in general from the Orientalizing period (Aristocrat)
Civitavecchia Date Range: 700 BCE - 600 BCE Individuals: R473, R474, R475
La Mattonara is an Iron Age Etruscan necropolis near the coastal town of Civitavecchia, on the Tyrrhenian Sea (129, 130). Archaeological evidence, such as storage rooms for traded goods and pits for salting and preserving seafood, suggests the economy of this and other coastal Etruscan towns was based on long-distance trade and the exploitation of marine resources (131). Civitavecchia later served as a major Roman port (built between 103 and 110 CE) and was known at the time as Centum Cellae.
Culture: Etruscan
Veio Grotta Gramiccia Date range: 900 BCE - 800 BCE Individual: R1015
The site of Veio (Veii in English, Veio in Italian) is a large Etruscan city, located about 18 kilometers north of Rome (179). Veio’s territories spanned not only the plateau on which was located, but extended from the Tiber River in the south to Monte Sabatini (180, 181). It was one of the most powerful Etruscan city-states and its proximity to Rome resulted in conflicts between the two cities in the Iron Age and Republican periods, until Rome’s victory over Veio in 396 BCE (182).
Research by the South Etruria Survey and Tiber Valley Project have documented Veio and it’s territory. These surveys mapped roads connecting Veio to other important regional cities, such as Rome and Tarquinia, and identified Veientine necropoli (often located along these roads) (183–185). One of these, Grotta Gramiccia contains over 800 tombs (181). Located on the road between Veio and Tarquinia and Vulci, it is one of the earliest cemeteries of Veio, with tombs dating from the 9th to 7th centuries BCE (179, 181, 186).
While the burial in this study from Grotta Gramaccia has not been published previously, material finds from elsewhere in the necropolis, as well as other domestic and industrial contexts in Veio offer insights into daily life in Veio and its contacts with other Etruscan groups and the world beyond.
Culture: Etruscan
Boville Ernica Date range: 700 BCE - 600 BCE Individuals: R1021
Boville Ernica, known in the past as “Bauco”, is situated on a steep hill overlooking the surrounding Liri, Cosa and Sacco valleys (105, 106). Pre-Roman occupation of the site is evidenced by Italic archaeological findings and Pelasgic walls, characteristic of the people of the Bronze Age Aegean (107, 108). The name of the city refers to the nearby temple on Monte Fico thought to be dedicated to the agricultural deity Bove, where votive statuettes featuring oxen have been found.
Culture: Dubious
Ardea Date range: 800 BCE - 500 BCE Individuals: R850, R851
Located 4 kilometers from the Tyhrennian coast, Ardeatine territory consists of a large flat area with a maximum height of about 80-90 m s.l.m., which descends towards the sea with a series of successive terraces (96, 97). The area was once the main urban center of the Rutuli, a population belonging to the "Latin lineage", as featured in the Aeneid (7.409-411) (94) .
Past archaeological research campaigns, as well as those in progress, carried out by the Superintendency for the Archaeological assets of Lazio, and by F. Di Mario direct, have allowed the discovery of sites, structures and finds of considerable importance, demonstrating how the Ardeatine territory is still extraordinarily rich in historical and artistic elements: their study is starting to provide interesting data for more knowledge of this part of the ancient Lazio (97–101). Early evidence for the town’s inhabitation dates back to the late Bronze Age (102, 103). Ardea was part of the Latin League confederation and first became a Roman colony in the 5th century BCE. It is mentioned in the first Roman-Carthaginian treaty (3.22.24) as Ardea was one of the towns that refused to aid Rome in the Second Punic Wars (104). The skeletal materials come from a necropolis (Campo del Fico) and from the area of the sanctuary, and are dated VIII and VI century BCE. The location of the site is not far from the sea and in connection with an important seaport, Castrum Inui, which gave Ardea a strategic role in controlling coastal routes in the pre-Roman Lazio region (102).
The two excavation campaigns conducted in 1981 and 1982 by E. Tortorici and L. Crescenzi brought to light 24 buried individuals (11 males 10 females and 3 infants) in both the necropolis area and the cult area (101).
Culture: Ardea Tribe – Latin Leauge