Have you checked these pages?
https://www.eupedia.com/europe/Haplogroup_T_mtDNA.shtml
https://www.eupedia.com/genetics/italian_dna.shtml
Some T1 subclades are found in Italy.
It seems rare, but its highest occurrence is in Campania. My grandfather's maternal line is from Ercolano (Campania), and their Mtdna is T1.
Region/Haplogroup | HV | H | HV0+V | J | T1 ▴ | T2 | U1 | U2 | U3 | U4 | U5 | U | K | N1+I | N2+W | X | Other | Size |
Campania | 2.8 | 43.8 | 2.8 | 8 | 4.1 | 6.3 | 1.1 | 0.6 | 5.2 | 1.9 | 4.1 | 2.2 | 7.4 | 3.8 | 1.1 | 1.7 | 3 | 363 |
ITALY | 2.9 | 40.2 | 3.3 | 8.1 | 3.3 | 8.2 | 1.5 | 1.6 | 2.1 | 1.9 | 4.6 | 2.7 | 7.7 | 1.4 | 1.9 | 2 | 7.9 | 3255 |
Apulia | 1.9 | 35.7 | 2.6 | 10.4 | 3.2 | 9.1 | 1.3 | 1.3 | 2.6 | 3.2 | 4.5 | 2.6 | 5.8 | 5.8 | 3.2 | 2.6 | 3.9 | 154 |
Veneto | 1.5 | 41.2 | 5.9 | 10.3 | 2.9 | 18.8 | ? | ? | 1.5 | ? | 1.5 | (2.9) | 4.4 | 1.5 | 0 | 4.4 | 0.1 | 68 |
Sardinia | 4.4 | 44.3 | 3.7 | 13 | 2.9 | 10.3 | 0 | 0 | 0 | 0 | 10 | 1.4 | 6 | 1.6 | 0.4 | 0.4 | 1.3 | 328 |
Latium | 3.2 | 39.3 | 4.7 | 8.4 | 2.9 | 4.6 | 1.6 | 1.9 | 5.3 | 0.6 | 4.2 | 1.2 | 7.6 | 1.6 | 1.9 | 3.1 | 7.6 | 641 |
Lombardy | 3.4 | 38.4 | 3.9 | 5.1 | 2.8 | 9 | 1.7 | 1.1 | 0 | 4 | 5.1 | 0 | 11.3 | 5.1 | 1.1 | 6.8 | 1.2 | 177 |
Tuscany | 4.8 | 41.4 | 5.1 | 6.4 | 2.7 | 8.6 | 0.5 | 1.9 | 2.4 | 2.1 | 4 | 3.5 | 7.8 | 2.1 | 2.1 | 2.1 | 2.5 | 374 |
Sicily | 5 | 45.2 | 2.3 | 6.7 | 2.7 | 4.4 | 2 | 1 | 0.7 | 1.3 | 3.3 | 1.7 | 6.3 | 6 | 1 | 3.7 | 5.6 | 303 |
Marche | 3.2 | 36.9 | 4.9 | 6.6 | 2.7 | 11.1 | 0.6 | 0.2 | 2.7 | 1.7 | 8.5 | 2.2 | 6.6 | 2.8 | 1.7 | 3.2 | 4.4 | 813 |
Piedmont | 1.2 | 56.5 | 6.5 | 7.1 | 0.6 | 5.9 | 0 | 1.8 | 2.4 | 1.8 | 1.2 | 0.6 | 7.1 | 1.8 | 2.4 | 3 | 0.1 | 169 |
Liguria | 2 | 44 | 10 | 8 | 0 | 4 | 0 | 0 | 6 | 0 | 4 | 2 | 6 | 0 | 6 | 2 | 6 | 50 |
Friuli-Venezia-Giulia | 6 | 54 | 0 | 4 | 0 | 12 | 4 | 2 | 0 | 0 | 14 | 0 | 2 | 0 | 2 | 0 | 0 | 50 |
Calabria | 10 | 28 | 4 | 14 | 0 | 10 | 0 | 0 | 4 | 2 | 12 | 2 | 8 | 2 | 0 | 2 | 2 | 50 |