Not probably the place to post Dodecad 12B distances but among R850, R851, R473, R474, and R475, R850 is my closest distance at 13.23 Dodecad 12b, Eurogenes K13 is 12.1. So I hope this guy is an Etruscan, not too bad for a sample 2,500 years or so ago. I went back to MTA and the distance for R850 is 12.1 consistent with the 2 calculator results above and I share 5.97 CM of DNA with R850 so thanks for the information about R850 as an Etruscan. I need to do some research on the Ardea area of Lazio.
TARQUINIUS SUPERBUS succeeded to the throne (534-510). He was energetic in war, and conquered many neighboring places, among which was
Ardea, a city of the Rutuli. He finished the temple of Jupiter, begun by his father. He also obtained the SIBYLLINE BOOKS. A woman from Cumae, a Greek colony, came to him, and offered for sale nine books of oracles and prophecies; but the price seemed exorbitant, and he refused to purchase them. The sibyl then burned three, and, returning, asked the same price for the remaining six. The king again refused. She burned three more, and obtained from the monarch for her last three the original price. These books were preserved in the Capitol, and held in great respect. They were destroyed with the temple by fire, on July 6, 83. Two men had charge of them, who were called
duoviri sacrórum. The worship of the Greek deities, Apollo and Latóna, among others, was introduced through these books.
In 510 a conspiracy* was formed against Tarquin by BRUTUS, COLLATÍNUS, and others, and the gates of the city were closed against him.
[*Note: The cause of the conspiracy was the violence offered by Sextus, Tarquin's son, to Lucretia, wife of Collatínus. Unable to bear the humiliation, she killed herself in the presence of her family, having first appealed to them to avenge her wrongs.]
A Republic was then formed, with two Consuls at the head of the government.
Tarquin made three attempts* to recover his power at Rome, all unsuccessful.
[*Note: The victory of Lake Regillus, which has been painted by Macaulay in glowing colors, was gained over Tarquin in 509.]
In the last attempt (508), he was assisted by PORSENA, king of the Etruscans. They advanced against the city from the north. HORATIUS COCLES, a brave young man, alone defended the bridge (
pans sublicius) over the Tiber until it was torn down behind him. He then swam the river in safety to his friends.
During the siege of the city, QUINTUS MUCIUS SCAEVOLA, a courageous youth, stole into the camp of the enemy with the intention of killing King Porsena, but by mistake killed his secretary instead. He was seized and carried to Porsena, who tried to frighten him by threats of burning. Instead of replying, Scaevola held his right hand on the burning altar until it was consumed. The king, admiring this heroic act, pardoned him. Out of gratitude, Scaevola told the king that three hundred other men as brave as himself had sworn to kill him. Porsena was so alarmed, that he made peace, and withdrew from the city. Mucius received his name Scaevola (left-handed) on account of this loss of his right hand.
Tarquin went to Tusculum, where he spent the rest of his days in retirement.
In 494 the plebeians at Rome rebelled, because they were exhausted by taxes and military service. A large part of them left the city, and crossed the Anio to a mountain (Mons Sacer) near by. The Senate sent MENENIUS AGRIPPA to treat with them. By his exertions* the people were induced to return to the city, and for the first time were allowed to have officers chosen from their own ranks to represent their interests. These officers were called Tribúni Plebis.
[*Note: Menenius is said to have related for them the famous fable of the belly and members.]
Two years later (492) Gaius Marcius, one of the patricians, met and defeated the Volsci, a neighboring tribe, at CORIOLI. For this he received the name of CORIOLÁNUS. During a famine, he advised that grain should not be distributed to the plebeians unless they relinquished their right to choose the Tribúni Plebis. For this he was banished. Having obtained command of a Volscian army, he marched against Rome, and came within five miles of the city. Here he was met by a deputation of his own citizens, who begged him to spare the city. He refused; but, when his wife and mother added their tears, he was induced to withdraw the army. He was afterwards killed by the Volscians as a traitor.
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https://digitalcommons.conncoll.edu/cgi/viewcontent.cgi?article=1003&context=classicshp