[3] Tommaso Stella was ordained a priest in the Order of Preachers.
[3][4][5] On 9 May 1544, he was appointed during the papacy of Pope Paul III as Bishop of Salpi.
[3][4] On 22 April 1547, he was appointed during the papacy of Pope Paul III as Bishop of Lavello.
[2][4] On 10 November 1549, he was appointed during the papacy of Pope Paul III as Bishop of Capodistria.
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