These two coins seem to belong to the beginning of Sanghadáman's reign. As the earliest coins of his successor Dámasena are dated 148 Sanghadáman's reign seems not to have lasted over four years. [137] [Kshatrapa XI. Dámasena, A.D. 226-236.] Sanghadáman was succeeded by his brother Dámasena, whose coins are fairly common, of good workmanship, and clear lettering. Of twenty-three specimens eleven have the following dates: 148, 150, 153, 155, 156, 157, 158. The legend runs: Rájño Mahákshatrapasa Rudrasimhasa putrasa Rájño Mahákshatrapasa Dámasenasa. Of the king the great Kshatrapa Dámasena son of the king the great Kshatrapa Rudrasimha. Dámasena seems to have reigned ten years (148-158) as coins of his son Víradáman are found dated 158. [Kshatrapa XII. Dámájadasrí II. A.D. 236.] Dámájadasrí the twelfth Kshatrapa is styled son of Rudrasena probably the eighth Kshatrapa. Dámájadasrí's coins are rare. [138] The legend runs: Rájño Mahákshatrapasa Rudrasenaputrasa Rajñah Kshatrapas Dámájadasriyah. Of the king the Kshatrapa Dámájadasrí son of the king the great Kshatrapa Rudrasena. Five specimens, the only specimens on record, are dated 154. [139] As 154 falls in the reign of Dámasena it seems probable that Dámájadasrí was either a minor or a viceroy or perhaps a ruler claiming independence, as about this time the authority of the main dynasty seems to have been much disputed. After Dámasena we find coins of three of his sons Víradáman Yasadáman and Vijayasena. Víradáman's coins are dated 158 and 163, Yasadáman's 160 and 161, and Vijayasena's earliest 160. Of the three brothers Víradáman who is styled simply Kshatrapa probably held only a part of his father's dominions. The second brother Yasadáman, who at first was a simple Kshatrapa, in 161 claims to be Mahákshatrapa. The third brother Vijayasena, who as early as 160, is styled Mahákshatrapa, probably defeated Yasadáman and secured the supreme rule. [Kshatrapa XIII. Víradáman, A.D. 236-238.] Víradáman's coins are fairly common. Of twenty-six in Pandit Bhagvánlál's collection, nineteen were found with a large number of his brother Vijayasena's coins. The legend reads: Rájño Mahákshatrapasa Dámasenasa putrasa Rájñah Kshatrapasa Víradámnah. Of the king the Kshatrapa Víradáman son of the king the great Kshatrapa Dámasena. Of the twenty-six ten are clearly dated, six with 158 and four with 160.