The King of Java from 1268 to 1292. Honoured as Java's greatest leader, he took advantage of the disunited Malay world in the 13th century to unite Java and became the most powerful ruler in South East Asia.

He protected Indonesia from Kublai Khan's efforts to exact tribute, and he upheld Buddhism and Javanese culture.

Without his efforts, we perhaps would not now have the wonders of Java coffee. And if we didn't have Java, think how different things would be. We'd have to rename at least one programming language for starters.