Background:
The ruling dynasties Sangama, Saluva, and Tuluva were associated with the Vijayanagara Empire, which was a prominent South Indian empire that existed from the 14th to 17th centuries.

Vijayanagara Empire:
- The Vijayanagara Empire was founded by Harihara I and his brother Bukka Raya I in 1336.
- The Sangama dynasty was the first ruling dynasty of the Vijayanagara Empire, with Harihara I being the first king of this dynasty.
- The Saluva dynasty succeeded the Sangama dynasty, with Saluva Narasimha Deva Raya being a notable ruler.
- The Tuluva dynasty followed the Saluva dynasty, with notable rulers like Krishna Deva Raya.

Characteristics of the Dynasties:
- The Sangama dynasty played a crucial role in establishing the foundations of the Vijayanagara Empire.
- The Saluva dynasty focused on consolidating power and expanding the empire's territories.
- The Tuluva dynasty was known for its cultural and architectural achievements, with Krishna Deva Raya being a patron of arts and literature.

Legacy:
- The Vijayanagara Empire reached its peak under the Tuluva dynasty, with Krishna Deva Raya being considered one of the greatest rulers in South Indian history.
- The empire's legacy includes its impressive architecture, vibrant culture, and significant contributions to literature and art.
In conclusion, the ruling dynasties Sangama, Saluva, and Tuluva were closely associated with the Vijayanagara Empire, which left a lasting impact on South Indian history and culture.