The Roman who destroyed the Temple nearly married a Jewish princess
Titus — the Roman general who besieged Jerusalem and destroyed the Second Beis HaMikdash in 70 CE — carried on a years-long relationship with Berenice, a great-granddaughter of Herod and a princess of the Jewish Herodian house. The Roman historian Suetonius records that Titus even promised to marry her; only when he became emperor in 79 CE did opposition in Rome force him to send her away — "against his will and against hers."
How we know
Berenice (b. 28 CE), daughter of Agrippa I and sister of Agrippa II, of the Herodian dynasty; Titus (39–81 CE), Roman commander at the siege of Jerusalem, emperor 79–81 CE. Suetonius, Life of Titus 7: Titus loved Berenice, was said to have promised her marriage, then dismissed her from Rome on his accession. These are well-documented first-century dates, so traditional and academic chronology agree here.
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